Classifications

• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
  • C07D413/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings
  • C07D413/12—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings linked by a chain containing hetero atoms as chain links
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P3/00—Drugs for disorders of the metabolism
  • A61P3/08—Drugs for disorders of the metabolism for glucose homeostasis
  • A61P3/10—Drugs for disorders of the metabolism for glucose homeostasis for hyperglycaemia, e.g. antidiabetics
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
  • C07D333/02—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
  • C07D333/04—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom
  • C07D333/06—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to the ring carbon atoms
  • C07D333/24—Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
  • C07D333/50—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom condensed with carbocyclic rings or ring systems
  • C07D333/52—Benzo[b]thiophenes; Hydrogenated benzo[b]thiophenes
  • C07D333/54—Benzo[b]thiophenes; Hydrogenated benzo[b]thiophenes with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the hetero ring
  • C07D333/60—Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D409/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms
  • C07D409/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings
  • C07D409/04—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings directly linked by a ring-member-to-ring-member bond
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D409/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms
  • C07D409/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings
  • C07D409/12—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings linked by a chain containing hetero atoms as chain links
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
  • C07D413/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings
  • C07D413/04—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings directly linked by a ring-member-to-ring-member bond

Definitions

• the present invention relates to glucagon receptor antagonist compounds, compositions containing such compounds and various methods of treatment relating to type 2 diabetes mellitus and related conditions.
• Diabetes refers to a disease process derived from multiple causative factors and is characterized by elevated levels of plasma glucose (hyperglycemia) in the fasting state or following glucose administration during an oral glucose tolerance test.
• Frank diabetes mellitus e.g., a blood glucose level >126 mg/dL in a fasting state
• Type 2 diabetes mellitus Patients with non-insulin dependent diabetes mellitus (type 2 diabetes mellitus), approximately 95% of patients with diabetes mellitus, frequently display elevated levels of serum lipids, such as cholesterol and triglycerides, and have poor blood-lipid profiles, with high levels of LDLcholesterol and low levels of HDL-cholesterol.
• Those suffering from Type 2 diabetes mellitus are thus at an increased risk of developing macrovascular and microvascular complications, including coronary heart disease, stroke, peripheral vascular disease, hypertension (for example, blood pressure >130/80 mmHg in a resting state), nephropathy, neuropathy and retinopathy.
• Type 2 diabetes at least early in the natural progression of the disease is characterized primarily by insulin resistance rather than by a decrease in insulin production, resulting in insufficient uptake, oxidation and storage of glucose in muscle, inadequate repression of lipolysis in adipose tissue, and excess glucose production and secretion by the liver.
• the net effect of decreased sensitivity to insulin is high levels of insulin circulating in the blood without appropriate reduction in plasma glucose (hyperglycemia). Hyperinsulinemia is a risk factor for developing hypertension and may also contribute to vascular disease.
• Glucagon serves as the major regulatory hormone attenuating the effect of insulin in its inhibition of liver gluconeogenesis and is normally secreted by alpha cells in pancreatic islets in response to falling blood glucose levels.
• the hormone binds to specific receptors in liver cells that trigger glycogenolysis and an increase in gluconeogenesis through cAMP-mediated events. These responses generate glucose (e.g. hepatic glucose production) to help maintain euglyeemia by preventing blood glucose levels from falling significantly.
• type 2 diabetics have elevated levels of plasma glucagon and increased rates of hepatic glucose production.
• Antagonists of the glucagon receptor are useful in improving insulin responsiveness in the liver, decreasing the rate of gluconeogenesis and glycogenolysis, and lowering the rate of hepatic glucose output resulting in a decrease in the levels of plasma glucose.
• the present invention relates to a compound represented by formula I:
• each R 1 represents H or is selected from the group consisting of halo, CN, OH, NO 2 , CO 2 R a , NR a R b , S(O) p R a , C 1-10 alkyl, C 2-10 alkenyl or C 1-10 alkoxy, the alkyl and alkenyl portions of C 1-10 alkyl, C 2-10 alkenyl and C 1-10 alkoxy being optionally substituted with 1-5 halo atoms up to perhalo; and further optionally substituted with 1 group selected from OH, oxo and C 1-6 alkox Y ;
• p 0, 1 or 2;
• each R a and R b independently represents H or C 1-4 alkyl optionally substituted with 1-5 halo atoms up to perhalo; and further optionally substituted with 1 group selected from OH, oxo and C 1-6 alkoxy;
• R 2 represents C 1-6 alkyl or C 2-6 alkenyl, each optionally substituted with 1-5 halo atoms up to perhalo, and further optionally substituted with 1 group selected from OH, oxo and C 1-6 alkoxy;
• each R 4 independently represents H or is selected from the group consisting of halo, OH, C 1-4 alkyl, OC 1-4 alkyl, haloC 1-4 alkyl and haloOC 1-4 alkyl;
• n 0, 1 or 2; such that when m represents 0 or 1, Z represents tetrazolyl; and when m represents 2, Z represents a member selected from the group consisting of CO 2 H, SO 3 H and C(O)NH 2 .
• Alkyl as well as other groups having the prefix “alk”, such as alkoxy, alkanoyl and the like, means carbon chains which may be linear, branched, or cyclic, or combinations thereof, containing the indicated number of carbon atoms. If no number is specified, 1-10 carbon atoms are intended for linear or branched alkyl groups. Examples of alkyl groups include methyl, ethyl, propyl, isopropyl, butyl, sec- and tert-butyl, pentyl, hexyl, heptyl, octyl, nonyl and the like.
• Cycloalkyl is a subset of alkyl; if no number of atoms is specified, 3-10 carbon atoms are intended, forming 1-3 carbocyclic rings that are fused.
• Examples of cycloalkyl include cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, decahydronaphthyl and the like.
• Alkenyl means carbon chains which contain at least one carbon-carbon double bond, and which may be linear or branched or combinations thereof. Examples of alkenyl include vinyl, allyl, isopropenyl, pentenyl, hexenyl, heptenyl, 1-propenyl, 2-butenyl, 2-methyl-2-butenyl, and the like. Cycloalkenyl is a subset of alkenyl. If no number is specified, 4-8 carbon atoms are included. Examples include cyclopentenyl, cyclohexenyl and the like.
• Aryl (Ar) means mono- and bicyclic aromatic rings containing 6-12 carbon atoms. Examples of aryl include phenyl, naphthyl, indenyl and the like. “Aryl” also includes monocyclic rings fused to an aryl group. Examples include tetrahydronaphthyl, indanyl and the like.
• Heteroaryl means a mono- or bicyclic aromatic ring or ring system containing at least one heteroatom selected from 0, S and N, with each ring containing 5 to 6 atoms. Examples include pyrrolyl, isoxazolyl, isothiazolyl, pyrazolyl, pyridyl, oxazolyl, oxadiazolyl, thiadiazolyl, thiazolyl, imidazolyl, triazolyl, tetrazolyl, furanyl, triazinyl, thienyl, pyrimidyl, pyridazinyl, pyrazinyl, benzoxazolyl, benzothiazolyl, benzimidazolyl, benzofuranyl, benzothiophenyl, furo(2,3-b)pyridyl, quinolyl, indolyl, isoquinolyl and the like.
• Heteroaryl also includes aromatic heterocyclic groups fused to heterocycles that are non-aromatic or partially aromatic, and aromatic heterocyclic groups fused to cycloalkyl rings. Heteroaryl also includes such groups in charged form, e.g., pyridinium.
• Halogen includes fluorine, chlorine, bromine and iodine.
• Haloalkyl and haloalkoxy refer to halogenated alkyl and alkoxy groups having the indicated number of carbon atoms, substituted with one to five halo atoms, up to perhalo, and preferably one to three halo atoms selected from fluoro and chloro.
• haloC 1-6 alkyl refers to a C 1-6 alkyl group substituted with halo atoms, up to perhalo.
• structures I, I-1 and I-2 depict the R 3 groups on the benzene ring of the benzothiophene moiety, the R 3 groups can be attached at any available point on the thiophene portion as well.
• One aspect of the invention relates to a compound represented by formula I:
• each R 1 represents H or is selected from the group consisting of halo, CN, OH, NO 2 , CO 2 R a , NR a R b , S(O) p R a , C 1-10 alkyl, C 2-10 alkenyl or C 1-10 alkoxy, the alkyl and alkenyl portions of C 1-10 alkyl, C 2-10 alkenyl and C 1-10 alkoxy being optionally substituted with 1-5 halo atoms up to perhalo; and further optionally substituted with 1 group selected from OH, oxo and C 1-6 aikoxY;
• p 0, 1 or 2;
• each R a and R b independently represents H or C 1-4 alkyl optionally substituted with 1-5 halo atoms up to perhalo; and further optionally substituted with 1 group selected from OH, oxo and C 1-6 alkoxy ;
• R 2 represents C 1-6 alkyl or C 2-6 alkenyl, each optionally substituted with 1-5 halo atoms up to perhalo, and further optionally substituted with 1 group selected from OH, oxo and C 1-6 alkoxy ;
• each R 3 represents H or is selected from the group consisting of halo; CN; OH; NO 2 ; CO 2 R a ; NR a R b ; S(O) p R a ; a 5-membered heteroaryl ring containing 1-3 nitrogen atoms, 0-1 oxygen or sulfur atom, and optionally substituted with 1-2 C 1-4 alkyl groups; C 1-10 alkyl; C 2-10 alkenyl and Cmoalkoxy, the alkyl and alkenyl portions of C 1-10 alkyl, C 2-10 alkenyl and C 1-10 alkoxy being optionally substituted with 1-5 halo atoms up to perhalo; and further optionally substituted with 1 group selected from OH, oxo, NR a R b and C 1-6 alkoxy;
• each R 4 independently represents H or is selected from the group consisting of halo, OH, C 1-4 alkyl, OC 1-4 alkyl, haloC 1-4 alkyl and haloOC 1-4 alkyl;
• n 0, 1 or 2; such that when m represents 0 or 1, Z represents tetrazolyl; and when m represents 2, Z represents a member selected from the group consisting of CO 2 H, SO 3 H and C(O)NH 2 .
• Another aspect of the invention that is of interest relates to a compound of formula I-2:
• R 1 represents H or is selected from the group consisting of halo, CN, C 1-6 alkyl, C 1-6 alkoxy, haloC 1-6 alkyl and haloC 1-6 alkoxy.
• each R 1 represents H or is selected from the group consisting of: halo selected from fluoro and chloro; CN; CH 3 ; OCH 3 ; CF 3 and OCF 3 .
• R 2 represents a member selected from the group consisting of: C 1-6 alkyl and C 3-4 alkenyl, each optionally substituted with 1-3 halo atoms.
• Another aspect of the invention that is of interest relates to compounds in accordance with formula I or a pharmaceutically acceptable salt or solvate thereof wherein R 2 represents C 2-5 alkyl optionally substituted with 1-3 halo atoms.
• R 2 is selected from the group consisting of ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl and 3-methylbutyl, each optionally substituted with 1-3 halo atoms selected from fluoro and chloro.
• R 2 is selected from the group consisting of ethyl, n-propyl, n-butyl, CH 2 CH(CH 3 ) 2 , CH 2 CH 2 CH(CH 3 ) 2 and CH 2 CH 2 CF 3 .
• Another aspect of the invention that is of interest relates to compounds in accordance with formula I or a pharmaceutically acceptable salt or solvate thereof wherein each
• R 3 represents H or is selected from the group consisting of halo, CN, OH, SCH 3 , SO 2 CH 3 , C 1-6 alkyl, C 1-6 alkoxy, haloC 1-6 alkyl, haloC 1-6 alkoxy and a 5-membered heteroaryl ring containing 1-2 nitrogen atoms and 0-1 oxygen atom, said ring being optionally substituted with 1-2 C 1-4 alkyl groups.
• each R 3 represents H or is selected from the group consisting of halo which is selected from F, Cl and Br, CN, OH, SCH 3 , SO 2 CH 3 , C 1-2 alkyl, C 1-2 alkoxy, haloC 1-2 alkyl and haloC 1-2 alkoxy wherein the halo portion of haloC 1-2 alkyl and haloC 1-2 alkoxy is selected from F and Cl, and a 5-membered heteroaryl ring containing 1-2 nitrogen atoms and 0-1 oxygen atom, said ring being optionally substituted with 1-2 C 1-4 alkyl groups.
• each R 3 represents H, F, Cl, Br, CN, OH, CH 3 , OCH 3 , OCH 2 CH 3 , CHF 2 , CF 3 , SCH 3 , SO 2 CH 3 , OCHF 2 , OCF 3 and a 5-membered heteroaryl ring containing 1-2 nitrogen atoms, 0-1 oxygen atom and being optionally substituted with 1 C 1-2 alkyl group.
• each R 4 represents H, halo selected from F and Cl, OH, C 1-2 alkyl, C 1-2 alkoxy, haloC 1-2 alkyl and haloC 1-2 alkoxy wherein the halo portion of haloC 1-2 alkyl and haloC 1-2 alkoxy is selected from F and Cl.
• Another aspect of the invention that is of interest relates to compounds in accordance with formula I or a pharmaceutically acceptable salt or solvate thereof wherein each R 4 represents H, F, Cl, OH, CH 3 , OCH 3 , CF 3 , and OCF 3 .
• Another aspect of the invention that is of interest relates to compounds in accordance with formula I or a pharmaceutically acceptable salt or solvate thereof wherein each R 4 represents H, F, CH 3 or OH.
• Another aspect of the invention that is of interest relates to compounds in accordance with formula I or a pharmaceutically acceptable salt or solvate thereof wherein m represents 0 or 1 and Z represents tetrazolyl.
• Another aspect of the invention that is of interest relates to compounds in accordance with formula I or a pharmaceutically acceptable salt or solvate thereof wherein m is 2 and Z represents CO 2 H.
• Another aspect of the invention that is of interest relates to compound in accordance with formula 1 or a pharmaceutically acceptable salt or solvate thereof wherein:
• each R 1 represents H or is selected from the group consisting of halo, CN, C 1-6 alkyl, C 1-6 alkoxy, haloC 1-6 alkyl and haloC 1-6 alkoxy;
• R 2 represents a member selected from the group consisting of: C 1-6 alkyl and C 3-4 alkenyl, each optionally substituted with 1-3 halo atoms;
• each R 3 represents H or is selected from the group consisting of halo, CN, OH, SCH 3 , SO 2 CH 3 , C 1-6 alkyl, C 1-6 alkoxy, haloC 1-6 alkyl, haloC 1-6 alkoxy and a 5-membered heteroaryl ring containing 1-2 nitrogen atoms and 0-1 oxygen atom, said ring being optionally substituted with 1-2 C 1-4 alkyl groups;
• each R 4 represents H, halo selected from F and Cl, OH, C 1-2 alkyl, C 1-2 alkoxy, haloC 1-2 alkyl and haloC 1-2 alkoxy wherein the halo portion of haloC 1-2 alkyl and haloC 1-2 alkoxy is selected from F and Cl;
• n 0 or 1 and Z is tetrazolyl, or m is 2 and Z represents CO 2 H.
• Another aspect of the invention that is of interest relates to a pharmaceutical composition
• a pharmaceutical composition comprising a compound as described above with respect to formula I or a pharmaceutically acceptable salt or solvate thereof in combination with a pharmaceutically acceptable carrier.
• Another aspect of the invention that is of interest relates to a method of treating type 2 diabetes mellitus in a mammalian patient in need of such treatment comprising administering to said patient a compound as described above with respect to formula I or a pharmaceutically acceptable salt or solvate thereof in an amount that is effective to treat type 2 diabetes mellitus.
• Another aspect of the invention that is of interest relates to a method of delaying the onset of type 2 diabetes mellitus in a mammalian patient in need thereof, comprising administering to the patient a compound as described above in accordance with formula I or a pharmaceutically acceptable salt or solvate thereof in an amount that is effective to delay the onset of type 2 diabetes mellitus.
• Another aspect of the invention that is of interest relates to a method of treating hyperglycemia, diabetes or insulin resistance in a mammalian patient in need of such treatment which comprises administering to said patient a compound as described above in accordance with formula I or a pharmaceutically acceptable salt or solvate thereof in an amount that is effective to treat hyperglycemia, diabetes or insulin resistance.
• Another aspect of the invention that is of interest relates to a method of treating non-insulin dependent diabetes mellitus in a mammalian patient in need of such treatment comprising administering to the patient an anti-diabetic effective amount of a compound in accordance with formula I or a pharmaceutically acceptable salt or solvate thereof as described above.
• Another aspect of the invention that is of interest relates to a method of treating obesity in a mammalian patient in need of such treatment comprising administering to said patient a compound in accordance with formula I as described above or a pharmaceutically acceptable salt or solvate thereof in an amount that is effective to treat obesity.
• Another aspect of the invention that is of interest relates to a method of treating Syndrome X in a mammalian patient in need of such treatment, comprising administering to said patient a compound in accordance with formula I as described above or a pharmaceutically acceptable salt or solvate thereof in an amount that is effective to treat Syndrome X.
• Another aspect of the invention that is of interest relates to a method of treating a lipid disorder selected from the group consisting of dyslipidemia, hyperlipidemia, hypertriglyceridemia, hypercholesterolemia, low HDL and high LDL in a mammalian patient in need of such treatment, comprising administering to said patient a compound as described above with respect to formula I or a pharmaceutically acceptable salt or solvate thereof in an amount that is effective to treat said lipid disorder.
• Another aspect of the invention that is of interest relates to a method of treating atherosclerosis in a mammalian patient in need of such treatment, comprising administering to said patient a compound in accordance with formula I as described above or a pharmaceutically acceptable salt or solvate thereof in an amount effective to treat atherosclerosis.
• Another aspect of the invention that is of interest relates to a method of treating a condition selected from the group consisting of: (1) hyperglycemia, (2) low glucose tolerance, (3) insulin resistance, (4) obesity, (5) lipid disorders, (6) dyslipidemia, (7) hyperlipidemia, (8) hypertriglyceridemia, (9) hypercholesterolemia, (10) low HDL levels, (11) high LDL levels, (12) atherosclerosis and its sequelae, (13) vascular restenosis, (14) pancreatitis, (15) abdominal obesity, (16) neurodegenerative disease, (17) retinopathy, (18) nephropathy, (19) neuropathy, (20) Syndrome X, and other conditions and disorders where insulin resistance is a component, in a mammalian patient in need of such treatment, comprising administering to the patient a compound in accordance with formula I as described above or a pharmaceutically acceptable salt or solvate thereof in an amount that is effective to treat said condition.
• a condition selected from the group consisting of: (1) hyperglycemia, (2)
• Another aspect of the invention that is of interest relates to a method of delaying the onset of a condition selected from the group consisting of (1) hyperglycemia, (2) low glucose tolerance, (3) insulin resistance, (4) obesity, (5) lipid disorders, (6) dyslipidemia, (7) hyperlipidemia, (8) hypertriglyceridemia, (9) hypercholesterolemia, (10) low HDL levels, (11) high LDL levels, (12) atherosclerosis and its sequelae, (13) vascular restenosis, (14) pancreatitis, (15) abdominal obesity, (16) neurodegenerative disease, (17) retinopathy, (18) nephropathy, (19) neuropathy, (20) Syndrome X, and other conditions and disorders where insulin resistance is a component in a mammalian patient in need of such treatment, comprising administering to the patient a compound in accordance with formula I as described above or a pharmaceutically acceptable salt or solvate thereof in an amount that is effective to delay the onset of said condition.
• a condition selected from the group consisting of (1) hyper
• Another aspect of the invention that is of interest relates to a method of reducing the risk of developing a condition selected from the group consisting of (1) hyperglycemia, (2) low glucose tolerance, (3) insulin resistance, (4) obesity, (5) lipid disorders, (6) dyslipidemia, (7) hyperlipidemia, (8) hypertriglyceridemia, (9) hypercholesterolemia, (10) low HDL levels, (11) high LDL levels, (12) atherosclerosis and its sequelae, (13) vascular restenosis, (14) pancreatitis, (15) abdominal obesity, (16) neurodegenerative disease, (17) retinopathy, (18) nephropathy, (19) neuropathy, (20) Syndrome X, and other conditions and disorders where insulin resistance is a component in a mammalian patient in need of such treatment, comprising administering to the patient a compound of foimula I as described above or a pharmaceutically acceptable salt or solvate thereof in an amount that is effective to reduce the risk of developing said condition.
• Another aspect of the invention that is of interest relates to a method of treating a condition selected from the group consisting of:
• hyperglycemia (2) low glucose tolerance, (3) insulin resistance, (4) obesity, (5) lipid disorders, (6) dyslipidemia, (7) hyperlipidemia, (8) hypertriglyceridemia, (9) hypercholesterolemia, (10) low HDL levels, (11) high LDL levels, (12) atherosclerosis and its sequelae, (1.3) vascular restenosis, (14) pancreatitis, (15) abdominal obesity, (16) neurodegenerative disease, (17) retinopathy, (18) nephropathy, (19) neuropathy, (20) Syndrome X, and other conditions and disorders where insulin resistance is a component, in a mammalian patient in need of such treatment,
• growth hormone secretagogues growth hon none secretagogue receptor agonists/antagonists, such as NN703, hexarelin, MK-0677, SM-130686, CP-424,391, L-692,429, and L-163,255, and such as those disclosed in U.S. Pat. Nos. 5,536,716, and 6,358,951, U.S. Patent Application Nos. 2002/049196 and 2002/022637, and PCT Application Nos.
• WO 01/56592 and WO 02/32888 (2) protein tyrosine phosphatase-1B (PTP-1B) inhibitors; (3) cannabinoid receptor ligands, such as cannabinoid CB 1 receptor antagonists or inverse agonists, such as rirnonaba.nt (Sanofi Synthelabo), AMT-251, and SR-14778 and SR 141716A (Sandi Synthelabo), SLY-319 (Solvay), BAY 65-2520 (Bayer), and those disclosed in U.S. Pat. Nos.
• PTP-1B protein tyrosine phosphatase-1B
• cannabinoid receptor ligands such as cannabinoid CB 1 receptor antagonists or inverse agonists, such as rirnonaba.nt (Sanofi Synthelabo), AMT-251, and SR-14778 and SR 141716A (Sandi Synthelabo), SLY-319 (So
• pancreatic lipase inhibitors such as orlistat (Xenical®), cetilistat, Triton WR1339, RHC80267, lipstatin, tetrahydrolipstatin, teasaponin, diethylumbelliferyl phosphate, and those disclosed in PCT Application No.
• WO 01/77094 (7) neuropeptide Y1 antagonists, such as B1BP3226, J-115814, BIBO 3304, LY-357897, CP-671906, GI-264879A, and those disclosed in U.S. Pat. No. 6,001,836, and PCT Patent Publication Nos.
• neuropeptide Y5 antagonists such as GW-569180A, GW-594884A, GW-587081X, GW-548118X, FR226928, FR 240662, FR252384, 1229U91, GI-264879A, CGP71683A, LY-377897, PD-160170, SR-120562A, SR-120819A and JCF-104, and those disclosed in U.S. Pat. Nos.
• WO 97/19682 WO 97/20820, WO 97/20821, WO 97/20822, WO 97/20823, WO 98/24768; WO 98/25907; WO 98/25908; WO 98/27063, WO 98/47505; WO 98/40356; WO 99/15516; WO 99127965; WO 00/64880, WO 00/68197, WO 00/69849, WO 01/09120, WO 01/14376; WO 01/85714, WO 01/85730, WO 01/07409, WO 01/02379, WO 01/02379, WO 01/23388, WO 01/23389, WO 01/44201, WO 01/62737, WO 01/62738, WO 01/09120, WO 02/22592, WO 0248152, and WO 02/49648; WO 02/094825; WO 03/0140
• WO 01/96302 WO 01/68609, WO 02/51232, and WO 02/51838; (13) serotonin reuptake inhibitors such as fluoxetine, paroxetine, and sertraline, and those disclosed in U.S. Patent Application No. 6,365,633, and PCT Patent Application Nos.
• melanocortin agonists such as Melanotan II, CFI1R86036 (Chiron), ME-10142, and ME-10145 (Melacure), CH1R86036 (Chiron); PT-141, and PT-14 (Palatin);
• other MC4R (melanocortin 4 receptor) agonists such as those disclosed in: U.S. Pat. Nos. 6,410,548; 6,294,534; 6,350,760; 6,458,790; 6,472,398; 6,376,509; and 6,818,658; US Patent Publication No.
• leptin including recombinant human leptin (PEG-OB, Hoffman La Roche) and recombinant methionyl human leptin (Amgen); (31) leptin derivatives, such as those disclosed in U.S. Pat. Nos. 5,552,524, 5,552,523, 5,552,522, 5,521,283, and PCT International Publication Nos.
• CNTF Central neurotrophic factors
• GI-181771 Gaxo-SmithKline
• SR146131 Sanofi Synthelabo
• butabindide PD170,292, and PD 149164 (Pfizer)
• CNTF derivatives such as axokine (Regeneron), and those disclosed in PCT Application Nos. WO 94/09134, WO 98/22128, and WO 99/43813
• monoamine reuptake inhibitors such as sibutrarnine, and those disclosed in U.S. Pat. Nos. 4,746,680, 4,806,570, and 5,436,272, U.S.
• UCP-1 uncoupling protein-1
• 2, or 3 activators such as phytanic acid, 4-[(E)-2-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-napthalenyl)-1-propenyl]benz
• FAS fatty acid synthase inhibitors, such as Cerulenin and C75
• DGAT1 diacylglycerol acyltransferase 1 inhibitors
• DGAT2 diacylglycerol acyltransferase 2 inhibitors
• ACC2 acetyl-CoA carboxylase-2
• glucocorticoid antagonists 43) acyl-estrogens, such as oleoyl-estrone, disclosed in del Mar-Grasa, M.
• dipeptidyl peptidase IV (DP-IV) inhibitors such as isoleucine thiazolidide, valine pyrrolidide, NVP-DPP728, LAF237, P93/01, TSL 225, TMC-2A/2B/2C, FE 999011, P9310/K364, VIP 0177, SDZ 274-444 and sitagliptin; and the compounds disclosed in US Patent No. U.S. Pat. No. 6,699,871, which is incorporated herein by reference; and International Patent Application Nos.
• DP-IV dipeptidyl peptidase IV
• Neuropeptide Y2 (NPY2) receptor agonists such NPY3-36, N acetyl [Leu(28,31)] NPY 24-36, TASP-V, and cyclo-(28/32)-Ac-[Lys28-Glu32]-(25-36)-pNPY;
• Neuropeptide Y4 (NPY4) agonists such as pancreatic peptide (PP) as described in Batterham et al., J.
• Y4 agonists such as 1229U91
• cyclooxygenase-2 inhibitors such as etoricoxib, celecoxib, valdecoxib, parecoxib, lumiracoxib, BMS347070, tiracoxib or JTE522, ABT963, CS502 and GW406381, and pharmaceutically acceptable salts thereof
• Neuropeptide Y1 (NPY1) antagonists such as B1BP3226, J-I 15814, BIBO 3304, LY-357897, CP-671906, GI-264879A and those disclosed in U.S. Pat. No.
• WO 00/21509 (57) 11 ⁇ HSD-1 (11-beta hydroxy steroid dehydrogenase type 1) inhibitors such as BVT 3498, BVT 2733, and those disclosed in WO 01/90091, WO 01/90090, WO 01/90092, and U.S. Pat. No. 6,730,690 and US Publication No.
• HSD-1 11-beta hydroxy steroid dehydrogenase type 1
• Specific compounds of use in combination with a compound of the present invention include: simvastatin, mevastatin, ezetimibe, atorvastatin, sitagliptin, metformin, sibutramine, orlistat, Qnexa, topiramate, naltrexone, bupriopion, phentermine, and losartan, losartan with hydrochlorothiazide.
• Specific CB1 antagonists/inverse agonists of use in combination with a compound of the present invention include: those described in WO03/077847, including: N-[3-(4-chlorophenyl)-2(S)-phenyl-1(S)-methylpropyl]-2-(4-trifluoromethyl-2-pyrimidyloxy)-2-methylpropanamide, N-[3-(4-chlorophenyl)-2-(3-cyanophenyl)-1-methylpropyl]-2-(5-trifluoromethyl-2-pyridyloxy)-2-methylpropanamide, N-[3-(4-chlorophenyl)-2-(5-chloro-3-pyridyl)-1-methylpropyl]-2-(5-trifluoromethyl-2-pyridyloxy)-2-methylpropanamide, and pharmaceutically acceptable salts thereof; as well as those in WO05/000809, which includes the following: 3- ⁇ 1-[bis(4
• NPY5 antagonists of use in combination with a compound of the present invention include: 3-oxo-N-(5-phenyl-2-pyrazinyl)-spiro[isobenzofiiran-1(3H),4′-piperidine]-1′-carboxamide, 3-oxo-N-(7-trifluoromethylpyrido[3,2-b]pyridin-2-yl)spiro-[isobenzofuran-1(3H),4′-piperidine]-1′-carboxamide, N-[5-(3-fluorophenyl)-2-pyrimidinyl]-3-oxospiro-[isobenzofuran-1(3H),4′-piperidine]-1′-carboxamide, trans-3′-oxo-N-(5-phenyl-2-pyrimidinyl)spiro[cyclohexane-1,1′(3′H)-isobenzofuran]-4-carboxamide, trans-3′-o
• Specific ACC-1/2 inhibitors of use in combination with a compound of the present invention include: 1′-[(4,8-dimethoxyquinolin-2-yl)carbonyl]-6-(1H-tetrazol-5-yl)spiro[chroman-2,4′-piperidin]-4-one; (5- ⁇ 1′-[(4,8-dimethoxyquinolin-2-yl)carbonyl]-4-oxospiro[chroman-2,4′-piperidin]-6-yl ⁇ -2H-tetrazol-2-yl)methyl pivalate; 5- ⁇ 1′-[(8-cyclopropyl-4-methoxyquinolin-2-yl)carbonyl]-4-oxospiro[chroman-2,4′-piperidin]-6-yl ⁇ nicotinic acid; 1′-(8-methoxy-4-morpholin-4-yl-2-naphthoyl)-6-(1H-tetrazol-5-yl)
• Specific MCHIR antagonist compounds of use in combination with a compound of the persent invention include: 1- ⁇ 4-[(1-ethylazetidin-3-yl)oxy]phenyl ⁇ -4-[(4-fluorobenzyl)oxy]pyridin-2(1H)-one, 4-[(4-fluorobenzyl)oxy]-1- ⁇ 4-[(1-isopropylazetidin-3-yl)oxy]phenyl ⁇ pyridin-2(1H)-one, 1-[4-(azetidin-3-yloxy)phenyl]-4-[(5-chloropyridin-2-yl)methoxy]pyridin-2(1H)-one, 4-[(5-chloropyridin-2-yl)methoxy]-1- ⁇ 4-[(1-ethylazetidin-3-yl)oxy]phenyl ⁇ pyridin-2(1H)-one, 4-[(5-chloropyridin-2-yl
• Specific DP-IV inhibitors of use in combination with a compound of the present invention are selected from 7-[(3R)-3-amino-4-(2,4,5-trifluorophenyl)butanoyl]-3-(trifluoromethyl)-5,6,7,8-tetrahydro-1,2,4-triazolo[4,3-a]pyrazine.
• the compound of formula I is favorably combined with 7-[(3R)-3-amino-4-(2,4,5-trifluorophenyl)butanoyl]-3-(trifluoromethyl)-5,6,7,8-tetrahydro-1,2,4-triazolo[4,3-a]pyrazine, and pharmaceutically acceptable salts thereof.
• Specific 113 (histamine H3) antagonists/inverse agonists of use in combination with a compound of the present invention include: those described in WO05/077905, including:3- ⁇ 4-[(1-cyclobutyl-4-piperidinyl)oxy]phenyl ⁇ -2-ethylpyrido[2,3-d]-pyrimidin-4(3H)-one, 3- ⁇ 4-[(1-cyclobutyl-4-piperidinyl)oxy]phenyl ⁇ -2-methylpyrido[4,3-d]pyrimidin-4(3H)-one, 2-ethyl-3-(4- ⁇ 3-[(3S)-3-methylpiperidin-1-yl]propoxy ⁇ phenyl)pyrido[2,3-d]pyrimidin-4(3H)-one 2-methyl-3-(4- ⁇ 3-[(3S)-3-methylpiperidin-1-yl]propoxy ⁇ phenyl)pyrido[4,3-d]pyrimidin-4(
• Specific CCK1R agonists of use in combination with a compound of the present invention include: 3-(4- ⁇ [1-(3-ethoxyphenyl)-2-(4-methylphenyl)-1H -imidazol-4-yl]carbonyl ⁇ -1-piperazinyl)-1-naphthoic acid; 3-(4- ⁇ [1-(3-ethoxyphenyl)-2-(2-fluoro-4-methylphenyl)-1H-imidazol-4-yl]carbonyl ⁇ -1-piperazinyl)-1-naphthoic acid; 3-(4- ⁇ [1-(3-ethoxyphenyl)-2-(4-fluorophenyl)-1H -imidazol-4-yl]carbonyl ⁇ -1-piperazinyl)-1-naphthoic acid; 3-(4- ⁇ [1-(3-ethoxyphenyl)-2-(2,4-difluorophenyl)-1H
• Specific MC4R agonists of use in combination with a compound of the present invention include: 1) (5S)-1′- ⁇ [(3R,4R)-1-tert-butyl-3-(2,3,4-trifluorophenyl)piperidin-4-yl]carbonyl ⁇ -3-chloro-2-methyl-5-[1-methyl-1-(1-methyl-1H-1,2,4-triazol-5-yl)ethyl]-5H-spiro[furo[3,4-b]pyridine-7,4′-piperidine]; 2) (5R)-1′- ⁇ [(3R,4R)-1-tert-butyl-3-(2,3,4-trifluorophenyl)-piperidin-4-yl]carbonyl ⁇ -3-chloro-2-methyl-5-[1-methyl-1-(1-methyl-1H-1,2,4-triazol-5-yl)ethyl]-5H-spiro[furo[3,4-b]pyridine-7,4′-
• neurokinin-1 (NK-1) receptor antagonists may be favorably employed in combination with a compound of the present invention.
• NK-1 receptor antagonists of use in the present invention are fully described in the art.
• Specific neurokinin-1 receptor antagonists of use in the present invention include: ( ⁇ )-(2R3R,2S3S)-N- ⁇ [2-cyclopropoxy-5-(trifluoromethoxy)-phenyl]methyl ⁇ -2-phenylpiperidin-3-amine ; 2-(R)-(1-(R)-(3,5-bis(trifluoromethyl)phenyl)ethoxy)-3-(S)-(4-fluorophenyl)-4-(3-(5-oxo-1H,4H-1,2,4-triazolo)methyl)morpholine; aperpitant; C.117493; GW597599; GW679769; R673; RO67319; R1124; R1204; SSR146977; SSR240600; T
• anti-obesity agents examples include “Patent focus on new anti-obesity agents,” Exp. Opin. Ther. Patents, 10: 819-831 (2000); “Novel anti-obesity drugs,” Exp. Opin. Invest. Drugs, 9: 1317-1326 (2000); and “Recent advances in feeding suppressing agents: potential therapeutic strategy for the treatment of obesity, Exp. Opin. Ther. Patents, 11: 1677-1692 (2001).
• the role of neuropeptide Y in obesity is discussed in Exp. Opin. Invest. Drugs, 9: 1327-1346 (2000).
• Cannabinoid receptor ligands are discussed in Exp. Opin. Invest. Drugs, 9: 1553-1571 (2000).
• Another aspect of the invention that is of interest relates to a method of treating a condition selected from the group consisting of hypercholesterolemia, atherosclerosis, low HDL levels, high LDL levels, hyperlipidemia, hypertriglyceridemia and dyslipidemia, in a mammalian patient in need of such treatment, comprising administering to the patient therapeutically effective amounts of a compound of formula I as described above and an HMG-CoA reductase inhibitor.
• another aspect of the invention that is of interest relates to a method of treating a condition selected from the group consisting of hypercholesterolemia, atherosclerosis, low HDL levels, high LDL levels, hyperlipidemia, hypertriglyceridemia and dyslipidemia, in a mammalian patient in need of such treatment, comprising administering to the patient therapeutically effective amounts of a compound of formula I as described above and an HMG-CoA reductase inhibitor wherein the HMG-CoA reductase inhibitor is a statin.
• another aspect of the invention that is of interest relates to a method of treating a condition selected from the group consisting of hypercholesterolemia, atherosclerosis, low HDL levels, high LDL levels, hyperlipidemia, hypertriglyceridemia and dyslipidemia, in a mammalian patient in need of such treatment, comprising administering to the patient therapeutically effective amounts of a compound of formula I as described above and an HMG-CoA reductase inhibitor, wherein the HMG CoA reductase inhibitor is a statin selected from the group consisting of lovastatin, simvastatin, pravastatin, fluvastatin, atorvastatin, itavastatin, rosuvastatin and rivastatin.
• Another aspect of the invention that is of interest relates to a method of reducing the risk of developing a condition selected from the group consisting of hypercholesterolemia, atherosclerosis, low HDL levels, high LDL levels, hyperlipidemia, hypertriglyceridemia and dyslipidemia, and the sequelae of such conditions, delaying the onset or reducing the risk of developing said condition, comprising administering to a mammalian patient in need of such treatment therapeutically effective amounts of a compound of formula I as described above and an HMG-CoA reductase inhibitor.
• another aspect of the invention that is of interest relates to a method for delaying the onset of, or reducing the risk of developing atherosclerosis in a human patient in need of such treatment comprising administering to said patient effective amounts of a compound of formula I as described above and an HMG-CoA reductase inhibitor wherein the HMG-CoA reductase inhibitor is a statin, and even more particularly, a statin selected from the group consisting of: lovastatin, simvastatin, pravastatin, fluvastatin, atorvastatin, itavastatin, rosuvastatin and rivastatin.
• another aspect of the invention that is of interest relates to a method for delaying the onset or reducing the risk of developing atherosclerosis in a human patient in need of such treatment comprising administering to said patient effective amounts of a compound of foiinula I as described above and an HMG-CoA reductase inhibitor wherein the HMG-CoA reductase inhibitor is simvastatin, atorvastatin or rosuvastatin.
• Another aspect of the invention that is of interest relates to a method for delaying the onset or reducing the risk of developing atherosclerosis in a human patient in need of such treatment comprising administering to said patient effective amounts of a compound of formula as described above and a cholesterol absorption inhibitor. More particularly, another aspect of the invention that is of interest relates to a method for delaying the onset or reducing the risk of developing atherosclerosis in a human patient in need of such treatment comprising administering to said patient effective amounts of a compound of formula I as described above and a cholesterol absorption inhibitor wherein the cholesterol absorption inhibitor is ezetimibe.
• Another aspect of the invention that is of interest relates to a method for delaying the onset or reducing the risk of developing the other diseases and conditions mentioned above, in a mammalian patient in need of such treatment comprising administering to said patient effective amounts of a compound of formula I as described above, and a cholesterol absorption inhibitor.
• another aspect of the invention that is of interest relates to a method for delaying the onset or reducing the risk of developing the other diseases and conditions mentioned above, in a human patient in need of such treatment comprising administering to said patient effective amounts of a compound of formula I as described above, and a cholesterol absorption inhibitor, wherein the cholesterol absorption inhibitor is ezetimibe.
• Another aspect of the invention that is of interest relates to a method of treating, delaying the onset, or preventing a condition selected from the group consisting of hypercholesterolemia, atherosclerosis, low HDL levels, high LDL levels, hyperlipidemia, hypertriglyceridemia and dyslipidemia, in a mammalian patient in need of such treatment, comprising administering to the patient therapeutically effective amounts of a compound of formula I or a pharmaceutically acceptable salt or solvate thereof, and a CETP inhibiting. compound.
• an aspect of the invention that is of interest relates to a method of treating, delaying the onset, or preventing a condition selected from the group consisting of hypercholesterolemia, atherosclerosis, low HDL levels, high LDL levels, hyperlipidemia, hypertriglyceridemia and dyslipidemia, in a mammalian patient in need of such treatment, comprising administering to the patient therapeutically effective amounts of a compound of formula I or a pharmaceutically acceptable salt or solvate thereof, and a CETP inhibiting compound selected from torcetrapib and anacetrapib.
• Another aspect of the invention that is of interest relates to a pharmaceutical composition
• a pharmaceutical composition comprising (1) a compound of formula I as described above; (2) a compound selected from the list provide above in combination with a pharmaceutically acceptable carrier.
• compositions that is of interest are comprised of a compound of formula I as described herein, or a pharmaceutically acceptable salt or solvate thereof, in combination with a DPP-IV inhibitor selected from the group consisting of:
• tautomers Some of the compounds described herein may exist with different points of attachment of hydrogen, referred to as tautomers. Such an example may be a ketone and its enol form known as keto-enol tautomers. The individual tautomers as well as mixtures thereof are encompassed with the compounds of Formula I.
• Salts and solvates of compounds of formula I are included in the present invention.
• pharmaceutically acceptable salts refers to salts prepared from pharmaceutically acceptable substantially non-toxic bases or acids including inorganic or organic bases and inorganic or organic acids, as well as salts that can be converted into pharmaceutically acceptable salts.
• Salts derived from inorganic bases include aluminum, ammonium, calcium, copper, ferric, ferrous, lithium, magnesium, manganic salts, manganous, potassium, sodium, zinc, and the like. Particularly preferred are the ammonium, calcium, magnesium, potassium, and sodium salts.
• Salts derived from pharmaceutically acceptable organic non-toxic bases include salts of primary, secondary, and tertiary amines, substituted amines including naturally occurring substituted amines, cyclic amines, and basic ion exchange resins, such as arginine, betaine, caffeine, choline, NN-dibenzylethylenediamine, diethylamine, 2-diethylaminoethanol, 2-dimethylaminoethanol, ethanolamine, ethylenediamine, N-ethyl-morpholine, N-ethylpiperidine, glucamine, glucosamine, histidine, hydrabamine, isopropylamine, lysine, methylglucamine, morpholine, piperazine, piperidine, polyamine resins, procaine, purines, theobromine, triethylamine, trimethylamine, tripropylamine, tromethamine and the like.
• basic ion exchange resins such as argin
• salts may be prepared from pharmaceutically acceptable non-toxic acids, including inorganic and organic acids.
• acids include acetic, benzenesulfonic, benzoic, camphorsulfonic, citric, ethanesulfonie, fumaric, gluconic, glutamic, hydrobromic, hydrochloric, isethionic, lactic, maleic, malic, mandelic, methanesulfonic, mucic, nitric, pamoic, pantothenic, phosphoric, succinic, sulfuric, tartaric, p-toluenesulfonic acid, and the like.
• Particularly preferred are citric, hydrobromic, hydrochloric, maleic, phosphoric, sulfuric, and tartaric acids.
• Solvates as used herein refers to the compound of formula I or a salt thereof, in association with a solvent, such as water. Representative examples include hydrates, hemihydrates, trihydrates and the like.
• references to the compounds of Formula I are intended to include the pharmaceutically acceptable salts and solvates.
• the atoms may exhibit their natural isotopic abundances, or one or more of the atoms may be artificially enriched in a particular isotope having the same atomic number, but an atomic mass or mass number different from the atomic mass or mass number predominantly found in nature.
• the present invention is meant to include all suitable isotopic variations of the compounds of the formulas described herein.
• different isotopic forms of hydrogen (H) include protium ( 1 H) and deuterium ( 2 H).
• Protium is the predominant hydrogen isotope found in nature. Enriching for deuterium may afford certain therapeutic advantages, such as increasing in vivo half-life or reducing dosage requirements, or may provide a compound useful as a standard for characterization of biological samples.
• Isotopically-enriched compounds within the formulas described herein can be prepared without undue experimentation by conventional techniques well known to those skilled in the art or by processes analogous to those described in the Schemes and Examples herein using appropriate isotopically-enriched reagents and/or intermediates.
• This invention relates to a method of inhibiting the activity of glucagon by antagonizing the glucagon receptor, thereby reducing the rate of gluconeogenesis and glycogenolysis, and the concentration of glucose in plasma.
• the compounds of formula I can be used in the manufacture of a medicament for the prophylactic or therapeutic treatment of disease states in mammals associated with elevated levels of glucose, comprised of combining the compound of formula I with the carrier materials to provide the medicament.
• the prophylactic or therapeutic dose of a compound of formula I will, of course, vary with the nature or severity of the condition to be treated, the particular compound selected and its route of administration. It will also vary according to the age, weight and response of the individual patient. In general, the daily dose range lies within the range of from about 0.001 mg to about 100 mg per kg body weight, preferably about 0.01 mg to about 50 mg per kg, and more preferably 0.1 to 10 mg per kg, in single or divided doses. It may be necessary to use dosages outside of these limits in some cases.
• Representative dosages of compounds of formula I, as well as the pharmaceutically acceptable salts and solvates thereof, for adults range from about 0.1 mg to about 1.0 g per day, preferably about 1 mg to about 500 mg, in single or divided doses.
• suitable dosages include 0.1mg, 1 mg, 2 mg, 5 mg, 10 mg, 20 mg, 40 mg, 50 mg, 75 mg, 100 mg, 150 mg, 200 mg, 250 mg, 500 mg, 1000 mg and similar such doses.
• a representative dosage range is from about 0.001 mg to about 100 mg (preferably from 0.01 mg to about 10 mg) of a compound of Formula I per kg of body weight per day, and more preferably, about 0.1 mg to about 10 mg of a compound of formula I per kg of body weight per day.
• the pharmaceutical composition comprises a compound of Formula I or a pharmaceutically acceptable salt or solvate thereof and a pharmaceutically acceptable carrier.
• composition encompasses a product comprising the active and inert ingredient(s), (pharmaceutically acceptable excipients) that make up the carrier, as well as any product which results, directly or indirectly, from the combination, complexation or aggregation of any two or more of the ingredients, or from dissociation of one or more of the ingredients, or from other types of reactions or interactions between ingredients.
• the composition is comprised of a compound of formula I in an amount that is effective to treat, prevent or delay the onset of type 2 diabetes mellitus, in combination with the pharmaceutically acceptable carrier.
• Any suitable route of administration may be employed for providing a mammal, especially a human, with an effective dosage of a compound of the present invention.
• oral, rectal, topical, parenteral, ocular, pulmonary, nasal, and the like may be employed.
• dosage forms include tablets, troches, dispersions, suspensions, solutions, capsules, creams, ointments, aerosols and the like, with oral tablets being preferred.
• any of the usual pharmaceutical media may be employed, such as, for example, water, glycols, oils, alcohols, flavoring agents, preservatives, coloring agents and the like, in the case of oral liquids, e.g., suspensions, elixirs and solutions; or carriers such as starches, sugars, microcrystalline cellulose, diluents, granulating agents, lubricants, binders, disintegrating agents and the like in the case of oral solids, e.g., powders, capsules and tablets.
• Solid oral preparations are preferred. Because of their ease of administration, tablets and capsules represent the most advantageous oral dosage unit forms. If desired, tablets may be coated by standard aqueous or nonaqueous techniques.
• the compounds of Formula I may also be administered by controlled release means and/or delivery devices such as those described in U.S. Pat. Nos. 3,845,770; 3,916,899; 3,536,809; 3,598,123; 3,630,200 and 4,008,719.
• compositions of the present invention suitable for oral administration may be presented as discrete units such as capsules, cachets or tablets each containing a predetermined amount of the active ingredient, as a powder or granules or as a solution or a suspension in an aqueous liquid, a non-aqueous liquid, an oil-in-water emulsion or a water-in-oil liquid emulsion.
• Such compositions may be prepared by any acceptable pharmaceutical process. All such methods include the step of combining the active ingredient(s) with the carrier components.
• the compositions are prepared by uniformly and intimately admixing the active ingredient(s) with a liquid or finely divided solid carrier component, and then, if necessary, manipulating the blend into the desired product form.
• a tablet may be prepared by compression or molding.
• Compressed tablets may be prepared by compressing free-flowing powder or granules, containing the active(s) optionally mixed with one or more excipients, e.g., binders, lubricants, diluents, surfactants and dispersants.
• Molded tablets may be made by molding a mixture of the powdered compound moistened with an inert liquid.
• each tablet may contain, for example, from about 0.1 mg to about 1.0 g of the active ingredient and each cachet or capsule contains from about 0.1 mg to about 500 mg of the active ingredient.
• Injectable Suspension (im.) mg/mL Tablet Mg/tablet Compound of 10.0 Compound of Formula 1 25.0 Formula 1 Methylcellulose 5.0 Microcrystalline 415 Cellulose Tween 80 0.5 Povidone 14.0 Benzyl alcohol 9.0 Pregelatinized Starch 4.0 Benzalkonium 1.0 Magnesium Stearate 2.5 chloride Water for injection t.d. 1.0 mL Total (approx.) 460 mg
• the compounds of Formula I may be used in combination with other drugs that are used in the treatment/prevention/delaying the onset of type 2 diabetes mellitus, as well as other diseases and conditions described herein, for which compounds of Formula I are useful.
• Other drugs may be administered, by a route and in an amount commonly used, contemporaneously or sequentially with a compound of Formula I.
• a combination pharmaceutical composition containing such other drugs in addition to the compound of Formula I is preferred.
• the pharmaceutical compositions of the present invention include those that alternatively contain one or more other active ingredients, in addition to a compound of Formula I.
• Examples of other active ingredients that may be combined with a compound of Formula I, either administered separately or in the same pharmaceutical compositions include, but are not limited to: (a) biguanides (e g., buformin, metformin, phenformin), (b) PPAR agonists (e.g., troglitazone, pioglitazone, rosiglitazone), (c) insulin, (d) somatostatin, (e) alpha-glucosidase inhibitors (e.g., voglibose, miglitol, acarbose), (f) DPP-IV inhibitors, such as sitagliptin, vildagliptin, saxagliptin, and the like, such as those disclosed in U.S.
• biguanides e g., buformin, metformin, phenformin
• PPAR agonists e.g., troglitazone, pioglitazone,
• An aspect of the invention that is particular interest relates to a pharmaceutical composition that is comprised of a compound of formula 1, or a pharmaceutically acceptable salt thereof, and a member selected from the group consisting of: simvastatin, mevastatin, ezetimibe, atorvastatin, metformin, sibutramine, orlistat, Qnexa, topiramate, naltrexone, bupriopion, phentermine, losartan, hydrochlorothiazide, buformin, phenformin, troglitazone, pioglitazone, rosiglitazone, insulin, somatostatin, voglibose, miglitol, acarbose, sitagliptin, vildagliptin, saxagliptin, alogliptin, acetohexamide, carbutamide, chlorpropamide, glibomuride, gliclazide, glimerpiride, glipizide
• the weight ratio of the compound of the Formula I to the second active ingredient may be varied within wide limits and depends upon the effective dose of each active ingredient. Generally, an effective dose of each will be used. Thus, for example, when a compound of the Formula I is combined with a PPAR agonist the weight ratio of the compound of the Formula I to the PPAR agonist will generally range from about 1000:1 to about 1:1000, preferably about 200:1 to about 1:200. Combinations of a compound of the Formula I and other active ingredients will generally also be within the aforementioned range, but in each case, an effective dose of each active ingredient should be used.
• the dosages noted above for the glucagon antagonist are provided along with the usual dose for the other medication.
• the DPP-IV inhibitor can be used in an amount ranging from about 1.0 mg to as high as about 1000mg, preferably about 2.5 mg to about 250 mg, and in particular, about 50 mg or about 100 mg administered in single daily doses or in divided doses as appropriate.
• the CB1 antagonist/inverse agonist can be used in an amount ranging from as low as about 0.1 mg to as high as about 1000 mg, more particularly, in an amout ranging from about 1.0 mg to about 100 mg, and even more particularly, in an amount from about 1.0 mg to about 10 mg, administered in single daily doses or in divided doses as appropriate.
• doses of CB1 antagonist/inverse agonist include ling, 2 mg, 3 mg, 4 mg, 5 mg, 6 mg, 7 mg, 8 mg, 9 mg, 10 mg and 20 mg.
• novel compounds of the present invention can be readily synthesized using techniques known to those skilled in the art, such as those described, for example, in Advanced Organic Chemistry , March, 5 th Ed., John Wiley and Sons, New York, N.Y., 2001; Advanced Organic Chemistry , Carey and Sundberg, Vol.
• the procedures described herein for synthesizing the compounds may include one or more steps of protecting group manipulations and of purification, such as, re-crystallization, distillation, column chromatography, flash chromatography, thin-layer chromatography (TLC), and high-pressure chromatography (HPLC).
• the products can be characterized using various techniques well known in the chemical arts, including proton and carbon-13 nuclear magnetic resonance ( 1 H and 13 C NMR), infrared and ultraviolet spectroscopy OR and UV), X-ray crystallography, elemental analysis and HPLC and mass spectrometry (HPLC-MS).
• Methods of protecting group manipulation, purification, structure identification and quantification are well known to one skilled in the art of chemical synthesis.
• solvents are those which will at least partially dissolve one or all of the reactants and will not adversely interact with either the reactants or the product.
• Suitable solvents are aromatic hydrocarbons (e.g, toluene, xylenes), halogenated solvents (e.g, methylene chloride, chloroform, carbontetrachloride, chlorobenzenes), ethers (e.g, diethyl ether, diisopropylether, tert-butyl methyl ether, diglyme, tetrahydrofuran, dioxane, anisole), nitriles (e.g, acetonitrile, propionitrile), ketones (e.g, 2-butanone, dithyl ketone, Cert-butyl methyl ketone), alcohols (e.g, methanol, ethanol, n-propanol, iso-propanol, n-butanol, t-butanol),
• Suitable bases are, generally, alkali metal hydroxides, alkaline earth metal hydroxides such as lithium hydroxide, sodium hydroxide, potassium hydroxide, barium hydroxide, and calcium hydroxide; alkali metal hydrides and alkaline earth metal hydrides such as lithium hydride, sodium hydride, potassium hydride and calcium hydride; alkali metal amides such as lithium amide, sodium amide and potassium amide; alkali metal carbonates and alkaline earth metal carbonates such as lithium carbonate, sodium carbonate, cesium carbonate, sodium hydrogen carbonate, and cesium hydrogen carbonate; alkali metal alkoxides and alkaline earth metal alkoxides such as sodium methoxide, sodium ethoxide, potassium tert-butoxide and magnesium ethoxide; alkali metal alkyls such as methyllithium, n-butyllithium, sec-butyllithium, t-bultyllithium, phenyllithium, alky
• BINAP 2,2′-bis(diphenylphosphino)-
• Bn benzyl 1,1′-binaphthalene
• Boc t-butyloxycarbonyl
• Cbz Benzyloxycarbonyl
• CDI 1,1′-carbonyldiimidazole
• S)-DAIPEN (S)-1,1-di(4-anisyl)-2-
• Scheme 1 depicts the preparation of compounds Ia, Ib, and Ic from the acid 1. It is noted that the benzothiophene can be substituted with R 3 at any available point of attachment. Moreover, the benzothiophene can be attached to the remainder of the molecule at position 2 or 3.
• the carboxylic acid intermediate I is coupled with substituted or unsubstituted beta alanine ester (either methyl, ethyl or t-butyl ester) using benzotriazol-1-yloxy-tris(dimethylamino)-phosphonium hexafluorophosphate (BOP) and a base, generally N,N-diisopropylethylamine (DIEA), in a solvent such as N,N-dimethylformamide (DMF) or acetonitrile at ambient temperature to yield compound 2.
• BOP benzotriazol-1-yloxy-tris(dimethylamino)-phosphonium hexafluorophosphate
• DIEA N,N-diisopropylethylamine
• DMF N,N-dimethylformamide
• the conversion of 1 to 2 may be carried out with EDC, HOBt, and a base such as DIEA in similar solvents as those used with B
• ester 2 methyl, ethyl
• Saponification of ester 2 (methyl, ethyl) to give compound Ia is achieved with a base such as aqueous lithium hydroxide (LiOH) or aqueous sodium hydroxide in a polar solvent such as tetrahydrofuran, methanol, ethanol or a mixture of similar solvents.
• compound 2, containing a t-butyl ester can be converted to compound Ia using acid such as acetic acid or trifluoroacetic acid (TFA).
• compounds Ib and Ic may be prepared directly from acid 1 by coupling with the appropriately substituted amine using the peptide coupling methods described for the preparation of amide 2.
• Scheme 2 summarizes the preparation of acid intermediate 1 using procedures adapted from Organic Letters , Chung, et. al., 2008, 10, 3037-3040.
• Coupling of aryl alkyl ketones 3 and aryl bromide 4 may be achieved under transition-metal mediated conditions such as those described in J. Am. Chem. Soc ., Buchwald, S. L., et. al., 2000, 122, 1360-1370.
• Ketone 5 may be prepared, for instance, by heating 3 and 4 in the presence of a palladium source such as Pd 2 (dba) 3 , a ligand such as BINAP, a base such as NaOtBu, and a solvent such as THF.
• Reduction of ketone 5 to alcohol 6 can be accomplished with various achiral reductants, for instance NaBH 4 .
• dynamic kinetic resolution of ketone 5 can afford highly enantio- and diastereoenriched alcohol 6 using catalysts such as those reviewed extensively in Angew. Chem., Int. Ed ., Noyori, R., et. al., 2001, 40, 40-73.
• this reaction can be performed using a ruthenium catalyst such as RuCl 2 [(S)-xyl-SEGPHOS][(S)-DAIPEN] and a base such as KOtBu in a solvent such as 2-propanol under an atmosphere of hydrogen.
• Acid 1 may then be accessed by treatment of 7 with a benzothiophene 8 in dichloromethane solvent at ambient temperature or 60° C. followed by the addition of a Bronsted acid such as trifluoroacetic acid (TFA) or a Lewis acid such as boron trifluoride-diethyl etherate.
• a Bronsted acid such as trifluoroacetic acid (TFA) or a Lewis acid such as boron trifluoride-diethyl etherate.
• TFA trifluoroacetic acid
• Lewis acid such as boron trifluoride-diethyl etherate
• R 3 substituents are typically present in the starting material benzothiophene 8, it is also possible to alter the R 3 substituents on advanced intermediates as shown in Scheme 3.
• a bromide substituent may be further functionalized using a variety of metal-mediated cross-coupling reactions obvious to those skilled in the art.
• the bromide substituent of intermediate 2a may be converted to nitrile 2b in the presence of a palladium catalyst such as Pd(PPh 3 ) 4 and a cyanide source such as Zn(CN) 2 in a polar aprotic solvent such as DMF at a temperature of 80° C. based on the chemistry described by Kubota and Rice, Tetrahedron Letters, 1998, 39, 2907-2910.
• intermediate 2a can be functionalized under Suzuki coupling conditions with an aryl or heteroaryl boronic acid 9, palladium catalyst such as PdCl 2 (dppf), base such as LiOH, in a mixed solvent system such as dioxane and water, at elevated temperatures such as 80° C. Under these conditions, the ethyl ester of intermediate 2a can also be hydrolyzed to afford compound la directly.
• palladium catalyst such as PdCl 2 (dppf)
• base such as LiOH
• a mixed solvent system such as dioxane and water
• Aryl fluorides such as 12 may be lithiated at the position adjacent to fluorine by a strong base such as lithium diisopropylamide in a solvent such as THF at low temperatures such as -70° C.
• the resulting intermediate can then react with a formyl electrophile such as DMF to afford the 2-fluorobenzaldehyde 13.
• Nucleophilic aromatic substitution of the fluorine substituent of 13 with methyl thioglycolate and subsequent cyclocondensation to benzothiophene 8a can be accomplished in a single vessel by heating the reactants in the presence of a base such as potassium carbonate in a solvent such as acetonitrile.
• the 2-carbomethoxy substituent of benzothiophene 8a may be removed to afford benzothiophene 81).
• Saponification of the ester as described for the conversion of 2 to Ia yields an acid which may be decarboxylated using a variety of procedures known to those skilled in the art. For instance, the acid may be treated with copper powder in quinoline at a temperature of 200° C.
• Separation of diastereomers and regioisomers can be carried out at various stages in the preparation of compounds I, however, it is typically carried out on compound I using reverse-phase HPLC or on the amide 2 using silica gel chromatography or preparative HPLC with a chiral stationary phase.
• PTLC thin layer chromatography
• the mixture was diluted with heptane (100 mL) and poured into a solution of saturated NaHCO 3 (aq) (60 mL) and ice (40 g). The resulting layers were separated, and the aqueous phase was back-extracted with methyl tert-butyl ether (50 mL). The combined organics were washed with saturated NaHCO 3 (aq) then 10% NaCl(aq). The organic solution was filtered through a bed of silica 60 (84 g, wetted with 1:1 methyl tert-butyl ether/heptane), and washed with 1:1 methyl tert-butyl ether/heptane (600 mL).
• Step B tert-Butyl 4-[(1R,2R)-2-(4-chlorophenyl)-1-propylethan-2-hydroxyl-1-yl]benzoate
• Orthophosphoric acid (85 wt %, 11.4 g, 99 mmol) was added to a slurry of tert-butyl 4-[(1R,2R)-2-(4-chlorophenyl)-1-propylethan-2-hydroxyl-1-yl]benzoate (7.42 g, 19.8 mmol) in acetonitrile (75 mL).
• the mixture was purged with nitrogen, then heated at 65° C. for 3.5 hours.
• the mixture was allowed to cool to 40° C., then water (25 mL) was added dropwise. Once crystallization began, additional water (50 mL) was added and the mixture was allowed to cool to room temperature.
• Step A Ethyl N-(4- ⁇ (1S)-1-[(7-bromo-5-chloro-1-benzothien-3-yl)(4-chlorophenyl)methyl]butyl ⁇ benzoyl)- ⁇ -alaninate
• Step B Ethyl N-(4- ⁇ (1S)-1-[(5-chloro-7-cyano-1-benzothien-3-yl)(4-chlorophenyl)methyl]butyl ⁇ benzoyl)- ⁇ -alaninate
• Step C N-(4- ⁇ (1S)-1-[(5-Chloro-7-cyano-1-benzothien-3-yl)(4-chlorophenyl)methyl]butyl ⁇ benzoyl)- ⁇ -alanine
• Step A Ethyl N-(4- ⁇ (1S)-1-[(7-bromo-5-fluoro-1-benzothien-3-yl)(4-chlorophenyl)methyl]pentyl ⁇ benzoyl)- ⁇ -alaninate
• Step B N-[4-((1S)-1- ⁇ (4-Chlorophenyl)[5-fluoro-7-(1-methyl-1H-pyrazol-5-yl)-1-benzothien-3-yl]methyl ⁇ pentyl)benzoyl]- ⁇ -alanine
• the mixture was degassed then irradiated in a microwave reactor at 80° C. for 15 minutes.
• the mixture was acidified with acetic acid then extracted with ethyl acetate.
• the organic layer was dried over Na 2 SO 4 , filtered, then concentrated.
• the resulting residue was purified by preparative reverse-phase HPLC eluting with acetonitrile/water+0.1% TFA.
• the resulting material was further purified by silica gel chromatography eluting with 5% MeOH/DCM+0.5% acetic acid to afford the title compound.
• Step A 4- ⁇ (1S)-1-[(7-Bromo-5-methyl-1-benzothien-3-yl)(4-chlorophenyl)methyl]butyl ⁇ benzoic Acid
• Step B 4- ⁇ (1S)-1-[(7-Bromo-5-methyl-1-benzothien-3-yl)(4-chlorophenyl)methyl]butyl ⁇ -N-1H-tetrazol-5-ylbenzamide
• IC 50 values for the compounds of the invention are generally in the range of as low as about 1 nM to as high as about 500 nM, and thus have utility as glucagon antagonists.
• the IC 50 values are shown below in TABLE 4 for the more active isomer of indicated compounds.
• Exponentially growing CHO cells expressing human glucagon receptor were harvested with the aid of enzyme-free dissociation media (Specialty Media), pelleted at low speed, and re-suspended in the Cell Stimulation Buffer included in the Flash Plate cAMP kit (New England Nuclear, SMP0004A).
• the adenylate cyclase assay was conducted as per manufacturer instructions. Briefly, compounds were diluted from stocks in DMSO and added to cells at a final DMSO concentration of 5%. Cells prepared as above were preincubated in flash plates coated with anti-cAMP antibodies (NEN) in the presence of compounds or DMSO controls for 30 minutes, then stimulated with glucagon (250 pM) for an additional 30 minutes.
• the cell stimulation was stopped by addition of equal amounts of a detection buffer containing lysis buffer as well as 125 I-labeled cAMP tracer (NEN). After 3 hours of incubation at room temperature the bound radioactivity was determined in a liquid scintillation counter (TopCount-Packard Instruments). Basal activity (100% inhibition) was determined using the DMSO control while 0% inhibition was defined at the amount of pmol cAMP produced by 250 pM glucagon. The resulting amount of cAMP generated per compound dose was back-calculated from a cAMP standard curve based on the percent inhibition achieved at each dose. The calculated cAMP levels were plotted versus compound dose to obtain IC 50 values using non-linear four-parameter curve fitting with Assay Data Analyzer software (Merck & Co., Inc.).

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