CN110759901A

CN110759901A - Tetrahydroisoquinoline derivatives, and preparation method and application thereof

Info

Publication number: CN110759901A
Application number: CN201810838525.0A
Authority: CN
Inventors: 吴勇勇; 王超磊; 蔡家强; 王利春; 王晶翼
Original assignee: Sichuan Kelun Botai Biological Pharmaceutical Ltd By Share Ltd
Current assignee: Sichuan Kelun Botai Biological Pharmaceutical Ltd By Share Ltd
Priority date: 2018-07-26
Filing date: 2018-07-26
Publication date: 2020-02-07

Abstract

The invention relates to tetrahydroisoquinoline derivatives, a preparation method and application thereof, in particular to tetrahydroisoquinoline amide compounds shown in formula I,A process for the preparation of the compound and the use of the compound in the treatment or prophylaxis of thromboembolic disorders.

Description

Tetrahydroisoquinoline derivatives, and preparation method and application thereof

Technical Field

The present invention relates to tetrahydroisoquinoline derivatives, processes for the preparation of the compounds and the use of the compounds in the treatment or prophylaxis of thromboembolic disorders.

Background

Thromboembolic diseases such as stroke, myocardial infarction and deep vein thrombosis are important causes of disability and death. Normal coagulation is a tightly regulated equilibrium process that requires the maintenance of the fluid state of the blood under normal physiological conditions, while providing a mechanism for rapidly forming a tampon at the site of injury to prevent loss of blood flow and life threatening. The coagulation process can be divided into three interdependent pathways: extrinsic, intrinsic, and common pathways. Among these, factor XIa is located near the origin of the intrinsic coagulation pathway, the initiation of which and the formation of factor XIa (by activation of thrombin or XIIa) are important for maintaining clot integrity. However, factor XIa is not essential for normal hemostasis. Studies have shown that increased levels of coagulation factor XI are associated with venous thrombosis and myocardial infarction in men and increase the chances of cerebrovascular and coronary artery disease. It is therefore concluded that inhibition of XIa can effectively inhibit thrombosis and does not lead to significant bleeding.

Various inhibitors of factor XIa are disclosed in WO2013/055984 and others. However, despite the existence of known factor XIa inhibitors, the prior art inhibitors still have deficiencies in metabolic stability in vivo, safety, and the like. Furthermore, the prior art tetrahydroisoquinoline factor XIa inhibitors generally have the disadvantage of poor solubility, which is not conducive to the preparation of formulations and affects the bioavailability and pharmacokinetic properties of the drug. Researchers find that the solubility of the inhibitor can be increased by adding a polar group into a molecule, however, the introduction of the polar group causes the activity, selectivity and/or stability of the compound to be sharply reduced, and toxic and side effects become large.

Therefore, there is an urgent need to develop a novel factor XIa inhibitor having improved solubility, a strong selective XIa inhibitory effect, improved drug metabolic stability, and less toxic and side effects.

Disclosure of Invention

It is an object of the present invention to provide a compound, a pharmaceutically acceptable salt, ester, stereoisomer, tautomer, polymorph, solvate, isotopically labeled compound, metabolite or prodrug thereof, which is useful for the treatment or prevention of thromboembolic disorders as a factor XIa inhibitor with improved solubility, potency and safety.

The present invention provides a compound or a pharmaceutically acceptable salt, ester, stereoisomer, tautomer, polymorph, solvate, isotopically labeled compound, metabolite or prodrug thereof, wherein the compound has the structure of formula (I):

wherein:

represents a single bond or a double bond;

R₁each occurrence is independently selected from H, cyano, halogen and 5-6 membered heteroaryl, and a plurality of R are₁May be the same or different from each other;

x is CH₂Or C ═ O;

R₃each occurrence of R is independently selected from H and hydroxy, and R is independently selected from H and hydroxy₃May be the same or different from each other, and at least one R₃Is not H;

y is selected from

W is selected from CR₄、CR_4aR_4bAnd C (═ O);

q is selected from N, C and CR₂；

R₂、R₄、R_4aAnd R_4bEach independently selected from H and C_1-6An alkyl group;

n is selected from any integer between 1 and 12 (e.g., 3 to 12), inclusive; preferably 3, 4, 5, 6, 7 and 8;

m is an integer of 1, 2, 3, 4 or 5, r is 0, 1 or 2.

Another aspect of the present invention provides a method for preparing the compound, which comprises the following steps:

(1) the preparation method of the intermediate E comprises the following steps:

wherein X is a boronic acid or boronic ester group, preferably

R₁Y, W, Q, m and r are as defined above;

route 1:

the method comprises the following steps: carrying out condensation reaction on the compound A and the compound B to generate a compound C;

step two: the compound C and the compound D generate a compound E through a coupling reaction;

route 2:

step three: the compound A and the compound D generate a compound F through a coupling reaction;

step four: the compound F and the compound B generate a compound E through a condensation reaction;

(2) a process for the preparation of formula I:

wherein R is₁、R₃X, Y, W, Q, n, m and r are as defined above;

route 1:

step five: removing a protecting group of the compound E under an acidic condition to generate a compound G;

step six: compound G produces a compound of formula I by condensation reaction with carboxylic acid, aminolysis reaction of ester, substitution reaction of halide, or reductive amination reaction of aldehyde, etc.;

route 2:

step seven: selectively removing the protecting group of the compound E under an acidic condition to generate a compound J;

step eight: compound J is reacted to compound K by condensation reaction with carboxylic acid, aminolysis reaction of ester, substitution reaction of halide or reductive amination reaction of aldehyde;

step nine: and removing the protecting group of the compound K under an acidic condition to generate the compound shown in the formula I.

Another aspect of the present invention provides a pharmaceutical composition comprising a compound of the present invention or a pharmaceutically acceptable salt, ester, stereoisomer, tautomer, polymorph, solvate, isotopically labeled compound, metabolite or prodrug thereof, preferably further comprising a pharmaceutically acceptable excipient.

Another aspect of the present invention provides a pharmaceutical formulation, wherein the formulation comprises a compound of the present invention or a pharmaceutically acceptable salt, ester, stereoisomer, tautomer, polymorph, solvate, isotopically labeled compound, metabolite or prodrug thereof as an active ingredient, in the form of a solid formulation, a semi-solid formulation, a liquid formulation or a gaseous formulation.

Another aspect of the invention provides a compound of the invention, or a pharmaceutically acceptable salt, ester, stereoisomer, tautomer, polymorph, solvate, isotopically labeled compound, metabolite or prodrug thereof, or a pharmaceutical composition of the invention, or a use of an agent of the invention in the manufacture of a medicament for the treatment of a disease associated with the inhibition of factor XIa, including arterial cardiovascular thromboembolic disorders, venous cardiovascular thromboembolic disorders, and thromboembolic disorders in the heart chamber.

Effects of the invention

The compound of the invention obviously improves the water solubility of the compound by introducing carboxyl-containing (poly) hydroxyalkyl or (poly) hydroxyalkanoyl, thereby improving the solubility of the compound in blood, reducing the Volume Distribution (Volume Distribution) of the drug in human body and improving the pharmacokinetic property and bioavailability of the drug. Meanwhile, the compound has high affinity to the blood coagulation factor XIa, extremely high selectivity to the blood coagulation factors Xa and VIIa, and good in-vivo metabolic stability and anti-hemagglutination curative effect.

Definition of

Unless defined otherwise below, all technical and scientific terms used herein are intended to have the same meaning as commonly understood by one of ordinary skill in the art. Reference to the techniques used herein is intended to refer to those techniques commonly understood in the art, including those variations of or alternatives to those techniques that would be apparent to those skilled in the art. While the following terms are well understood by those skilled in the art, the following definitions are set forth to better explain the present invention.

The terms "comprising," "including," "having," "containing," or "involving," and other variations thereof herein, are open-ended and do not exclude additional unrecited elements or method steps.

The term "halo" or "halogen" refers to F, Cl, Br or I.

The term "C_1-6Alkyl "means a straight or branched chain alkyl group having 1 to 6 carbon atoms, e.g. C_1-4Alkyl radical, C_1-2Alkyl radical, C₁Alkyl radical, C₂Alkyl radical, C₃Alkyl radical, C₄Alkyl radical, C₅Alkyl or C₆Alkyl, preferably C_1-4An alkyl group. Specific examples include, but are not limited to, methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, n-pentyl, n-hexyl, and the like.

The term "5-6 membered heteroaryl" refers to a monocyclic aromatic group containing 5-6 ring members, and at least 1 up to 4 (e.g., 1, 2, 3, or 4) of said ring members are heteroatoms selected from N, O and S, e.g., 5 membered heteroaryl, 6 membered heteroaryl, and the like. Specific examples include, but are not limited to, furyl, thienyl, pyrrolyl, thiazolyl, isothiazolyl, thiadiazolyl, oxazolyl, isoxazolyl, imidazolyl, pyrazolyl, 1, 2, 3-triazolyl, 1, 2, 4-triazolyl, 1, 2, 3-oxadiazolyl, 1, 2, 4-oxadiazolyl, 1, 2, 5-oxadiazolyl, 1, 3, 4-oxadiazolyl, pyridyl, 2-pyridonyl, 4-pyridonyl, pyrimidinyl, 2H-1, 2-oxazinyl, 4H-1, 2-oxazinyl, 6H-1, 2-oxazinyl, 4H-1, 3-oxazinyl, 6H-1, 3-oxazinyl, 4H-1, 4-oxazinyl, pyridazinyl, pyrazinyl, 1, 2, 3-triazinyl, 1, 3, 5-triazinyl, 1, 2, 4, 5-tetrazinyl, 1H-tetrazolyl, and the like.

The term "stereoisomer" denotes an isomer formed as a result of at least one asymmetric center. In compounds having one or more (e.g., one, two, three, or four) asymmetric centers, they can give rise to racemic mixtures, single enantiomers, diastereomeric mixtures, and individual diastereomers. Certain individual molecules may also exist as geometric isomers (cis/trans). Similarly, the compounds of the invention may exist as mixtures of two or more structurally different forms (commonly referred to as tautomers) in rapid equilibrium. Representative examples of tautomers include keto-enol tautomers, phenol-keto tautomers, nitroso-oxime tautomers, imine-enamine tautomers, and the like. It is understood that the scope of this application encompasses all such isomers or mixtures thereof in any ratio (e.g., 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95%, 96%, 97%, 98%, 99%).

Solid (—), solid wedge shapes may be used herein

Virtual wedge shape

Compounds embodying the inventionChemical bond of matter. The solid line is used to depict the representation of the bond to the asymmetric carbon atom, including all possible stereoisomers at that carbon atom (e.g., particular enantiomers, racemic mixtures, etc.). The use of solid or dashed wedges to depict bonds to asymmetric carbon atoms indicates that the stereoisomers shown are present. When present in a racemic mixture, solid and dotted wedges are used to define the relative stereochemistry, not the absolute stereochemistry. Unless otherwise indicated, the compounds of the present invention may exist in the form of stereoisomers (which include cis and trans isomers, optical isomers (e.g., R and S enantiomers), diastereomers, geometric isomers, rotamers, conformers, atropisomers, and mixtures thereof). The compounds of the present invention may exhibit more than one type of isomerization and consist of mixtures thereof (e.g., racemic mixtures and diastereomeric pairs).

The present invention encompasses all possible crystalline forms or polymorphs of the compounds of the present invention, which may be single polymorphs or mixtures of more than one polymorph in any ratio.

It will also be appreciated that the compounds of the invention may be present in free form for use in therapy or, where appropriate, in the form of a pharmaceutically acceptable derivative thereof. In the present invention, pharmaceutically acceptable derivatives include, but are not limited to, pharmaceutically acceptable salts, esters, solvates, metabolites, isotopically labeled compounds or prodrugs, which upon administration to a patient in need thereof are capable of providing, directly or indirectly, a compound of the present invention or a metabolite or residue thereof. Thus, when reference is made herein to "a compound of the invention," it is also intended to encompass the various derivative forms of the compounds described above.

The term "substituted" means that one or more (e.g., 1, 2, 3, or 4) hydrogens on the designated atom is replaced with a selected group, provided that the designated atom's normal valency at the present instance is not exceeded, and that the substitution results in a stable compound. The number of substituent groups selected is permissible only if such combination forms a stable compound.

If a substituent is described as "optionally substituted", the substituent may be (1) unsubstituted or (2) substituted. If a carbon of a substituent is described as optionally substituted with one or more of the list of substituents, then one or more hydrogens on the carbon may be replaced individually and/or together with an independently selected optional substituent. If the nitrogen of a substituent is described as being optionally substituted with one or more of the list of substituents, then one or more hydrogens on the nitrogen may each be replaced with an independently selected optional substituent.

If a substituent is described as "independently selected", each substituent may be the same as or different from another (other) substituent.

As used herein, the term "one or more" means 1 or more than 1, such as 2, 3, 4, 5 or 10, under reasonable conditions.

Unless indicated, as used herein, the point of attachment of a substituent may be from any suitable position of the substituent.

The invention also includes all pharmaceutically acceptable isotopically-labeled compounds, which are identical to those of the present invention, except that one or more atoms are replaced by an atom having the same atomic number, but an atomic mass or mass number different from the atomic mass or mass number prevailing in nature. Examples of isotopes suitable for inclusion in compounds of the invention include, but are not limited to, isotopes of hydrogen (e.g. deuterium (D,²H) tritium (T,³H) ); isotopes of carbon (e.g. of¹¹C、¹³C and¹⁴C) (ii) a Isotopes of chlorine (e.g. of chlorine)³⁶Cl); isotopes of fluorine (e.g. of fluorine)¹⁸F) (ii) a Isotopes of iodine (e.g. of iodine)¹²³I and¹²⁵I) (ii) a Isotopes of nitrogen (e.g. of¹³N and¹⁵n); isotopes of oxygen (e.g. of¹⁵O、¹⁷O and¹⁸o); isotopes of phosphorus (e.g. of phosphorus)³²P); and isotopes of sulfur (e.g. of³⁵S). Certain isotopically-labeled compounds of the present invention are useful in drug and/or substrate tissue distribution studies (e.g., assays). Pharmaceutically acceptable solvates of the invention include those in which the crystallization solvent may be isotopically substituted, e.g., D₂O, acetone-d₆Or DMSO-d₆。

Otherwise, the groups not defined here follow the usual definitions.

Pharmaceutically acceptable salts of the compounds of the present invention include acid addition salts and base addition salts thereof. Examples include salts with alkali metals, alkaline earth metals, ammonium, alkylammonium, etc., salts with inorganic or organic acids. Suitable acid addition salts are formed from acids which form non-toxic salts. Inorganic acids such as nitric acid, phosphoric acid, hydrochloric acid, hydrobromic acid, hydroiodic acid, sulfuric acid, carbonic acid, perchloric acid, or the like, organic acids such as formic acid, acetic acid, propionic acid, butyric acid, valeric acid, caproic acid, enanthic acid, caprylic acid, cyclopentanepropionic acid, undecanoic acid, 4-methylbicyclo [2.2.2] oct-2-ene-1-carboxylic acid, glucoheptonic acid, 4' -methylenebis (3-hydroxy-2-ene-1-carboxylic acid), 3-phenylpropionic acid, trimethylacetic acid, tert-butylacetic acid, laurylsulfuric acid, gluconic acid, glutamic acid, hydroxynaphthoic acid, muconic acid, lactic acid, malic acid, oxalic acid, fumaric acid, tartaric acid, maleic acid, citric acid, nicotinic acid, benzoic acid, salicylic acid, or ascorbic acid; sulfonic acids such as methanesulfonic acid, ethanesulfonic acid, 2-hydroxyethanesulfonic acid, benzenesulfonic acid, p-toluenesulfonic acid, 2-naphthalenesulfonic acid, 3-phenylsulfonic acid, camphorsulfonic acid, or the like.

Suitable base addition salts are formed from bases which form non-toxic salts. Acceptable inorganic bases include aluminum hydroxide and calcium hydroxide, among others. Acceptable organic bases include tromethamine, N-methylglucamine and the like.

For a review of suitable salts see Stahl and Wermuth, "Handbook of pharmaceutical salts: properties, Selection, and Use "(Wiley-VCH, 2002). Methods for preparing pharmaceutically acceptable salts of the compounds of the present invention are known to those skilled in the art.

As used herein, the term "ester" means an ester derived from a compound of the respective formula in the present application, including physiologically hydrolysable esters (a compound of the invention that can be hydrolysed under physiological conditions to release the free acid or alcohol form), e.g. a compound of the invention with C_1-6Esters formed from alkanols, such as methyl, ethyl, propyl, isopropyl, tert-butyl esters and the like. The compounds of the invention may also be themselvesAs an ester.

The compounds of the invention may be present in the form of solvates, preferably hydrates, wherein the compounds of the invention comprise as structural element of the crystal lattice of the compound a polar solvent, such as in particular water, methanol or ethanol. The amount of polar solvent, particularly water, may be present in stoichiometric or non-stoichiometric proportions.

Also included within the scope of the present invention are metabolites of the compounds of the present invention, i.e., substances formed in vivo upon administration of the compounds of the present invention. Such products may result, for example, from oxidation, reduction, hydrolysis, amidation, deamidation, esterification, defatting, enzymatic hydrolysis, etc. of the administered compound. Accordingly, the present invention includes metabolites of the compounds of the present invention, including compounds made by the process of contacting the compounds of the present invention with a mammal for a time sufficient to produce a metabolite thereof.

The present invention further includes within its scope prodrugs of the compounds of the present invention which are certain derivatives of the compounds of the present invention which may themselves have little or no pharmacological activity which, when administered into or onto the body, may be converted to the compounds of the present invention having the desired activity by, for example, hydrolytic cleavage. Typically such prodrugs will be functional derivatives of the compounds which are readily convertible in vivo into the desired therapeutically active compound. Further information on the use of prodrugs can be found in "Pro-drugs as Novel Delivery Systems", volume 14, ACS Symposium Series (T.Higuchi and V.Stella) and "Bioreversible Carriers in Drug Design," PergamonPress, 1987(E.B.Roche editions, American Pharmaceutical Association). Prodrugs of the invention may be prepared, for example, by substituting certain moieties known to those skilled in the art as "pro-moieties" (e.g., "Design of produgs", described in h. bundgaard (Elsevier, 1985)) for appropriate functional groups present in compounds of the invention.

The invention also encompasses compounds of the invention containing a protecting group. In any process for preparing the compounds of the present invention, it may be necessary and/or desirable to protect sensitive or reactive groups on any of the molecules concerned, thereby forming a chemically protected form of the compounds of the present invention. This can be achieved by conventional protecting groups, for example, as described in protective groups in Organic Chemistry, ed.j.f.w.mcomie, Plenum Press, 1973; and T.W.Greene & P.G.M.Wuts, Protective Groups in Organic Synthesis, John Wiley & Sons, 1991, which are incorporated herein by reference. The protecting group may be removed at a suitable subsequent stage using methods known in the art.

Compound (I)

An object of the present invention is to provide a compound represented by the following formula (I) or a pharmaceutically acceptable salt, ester, stereoisomer, tautomer, polymorph, solvate, isotopically labeled compound, metabolite, or prodrug thereof, wherein the compound has the structure of formula (I):

wherein:

represents a single bond or a double bond;

R₁each occurrence is independently selected from H, halogen, cyano and 5-6 membered heteroaryl, and a plurality of R are₁May be the same or different from each other;

x is CH₂Or C ═ O;

y is selected from

W is selected from CR₄、CR_4aR_4bAnd C (═ O);

q is selected from N, C and CR₂；

n is selected from any integer between 1 and 12 (e.g., 3 to 12), inclusive, preferably 3, 4, 5, 6, 7, and 8;

m is an integer of 1, 2, 3, 4 or 5, r is 0, 1 or 2.

In a preferred embodiment, R₁Each occurrence is independently selected from H, fluoro, chloro, bromo, cyano and 5-membered heteroaryl (e.g., 5-membered nitrogen-containing heteroaryl), and a plurality of R are₁May be the same or different from each other.

In a preferred embodiment, R₁Each occurrence is independently selected from H, fluoro, chloro, bromo, and 5-membered heteroaryl (e.g., 5-membered nitrogen-containing heteroaryl), and a plurality of R are₁May be the same or different from each other.

In a preferred embodiment, R₁Each occurrence independently selected from the group consisting of H, fluoro, chloro and

and a plurality of R₁May be the same or different from each other.

and m is selected from 2 and 3.

In a preferred embodiment, W is selected from CH and C (═ O).

In a preferred embodiment, Q is selected from C and N.

In a preferred embodiment, W is selected from C (═ O) and Q is N.

In a preferred embodiment, W is selected from CH, Q is selected from C and

represents a double bond.

In preferred embodiments, n is selected from 3, 4, 5, 6, 7 or 8; r₃Independently at each occurrenceIs selected from H and hydroxy, a plurality of R₃May be the same or different from each other, and has at least 1R₃Not H, preferably at least 2R₃Is not H, more preferably at least 3R₃Is not H.

In preferred embodiments, n is selected from 3, 4, 5 or 6; r₃Each occurrence of R is independently selected from H and hydroxy, and R is independently selected from H and hydroxy₃May be the same or different from each other, and has at least 1R₃Not H, preferably at least 2R₃Is not H, more preferably at least 3R₃Is not H.

In a preferred embodiment, n is selected from 3 and 4.

In preferred embodiments, n is selected from 3 and 4, and wherein 2, 3 or 4R₃Is not H.

In a preferred embodiment, r is 1.

In a preferred embodiment, m is selected from 2 and 3.

In a preferred embodiment, W is selected from CH and C (═ O), Q is selected from C and N, and Y is selected from

In a preferred embodiment, W is selected from CH, Q is selected from C and

represents a double bond, Y is selected from

R₃Each occurrence of R is independently selected from H and hydroxy, and R is independently selected from H and hydroxy₃May be the same or different from each other, and at least one R₃N is selected from 3 and 4, instead of H.

In a preferred embodiment, W is selected from CH, Q is selected from C and

represents a double bond, Y is selected from

In a preferred embodiment, the compound has the structure of formula (II):

wherein:

n is selected from 3, 4, 5 or 6;

R₃each occurrence of R is independently selected from H and hydroxy, and R is independently selected from H and hydroxy₃May be the same or different from each other and has at least 1, 2 or 3R₃Is not H;

R₁y, W, Q, m and r are as defined for formula I.

In a preferred embodiment, the compound has the structure of formula (II-1):

wherein m is selected from 2 and 3, R₁、R₃Y, W, Q, n and r are as defined for formula I.

In a preferred embodiment, the compound has the structure of formula (II-2):

wherein R is₁Is selected from H and

R₃y and n are as defined for formula I.

In a preferred embodiment, the compound has the structure of formula (II-3):

wherein R is₁Is selected from H and

R₃y and n are as defined for formula I.

In a preferred embodiment, wherein said compound is selected from,

preparation method

Another object of the present invention is to provide a process for producing the compound of formula (I) above, which can be produced by a process comprising the following reaction steps described in the reaction scheme of the process described below.

(1) The preparation method of the intermediate E comprises the following steps:

wherein, X₁Is a boronic acid or boronic ester group, preferably

R₁Y, W, Q, m and r are as defined above.

Route 1:

step two: and the compound C and the compound D generate a compound E through a coupling reaction.

Route 2:

step four: the compound F and the compound B generate a compound E through a condensation reaction.

Wherein the condensation reaction is carried out in the presence of a condensing agent and an organic base, and the condensing agent used can be HATU, HBTU, HCTU, HOBt/EDCI, DMC, DCC, DIC, EDCI, BOP, PyBOP, PyAOP and the like, preferably HATU, HOBt/EDCI, EDCI; the organic base used may be TEA, DMAP, DIEA, pyridine, etc., preferably DIEA, TEA, pyridine: the condensation reaction may be carried out in an organic solvent, suitable organic solvents include DMF, halogenated hydrocarbons (e.g. chloroform, dichloromethane, dichloroethane), ethers (e.g. 1, 4-dioxane, tetrahydrofuran, dimethyl ether, diethyl ether, methyl tert-butyl ether); the reaction temperature may be 0 to 100 ℃, preferably 0 ℃ and room temperature; the reaction time is in the range of 1 to 24 hours, preferably 1 to 3 hours.

The coupling reaction is carried out in the presence of a metal catalyst and a base, the metal catalyst being a palladium metal catalyst, such as tetrakis (triphenylphosphine) palladium, [1, 1 '-bis (diphenylphosphino) ferrocene ] dichloropalladium dichloromethane complex, bis (triphenylphosphine) palladium dichloride, palladium acetate, preferably [1, 1' -bis (diphenylphosphino) ferrocene ] dichloropalladium dichloromethane complex; the base is an inorganic base, such as cesium carbonate, potassium carbonate, sodium carbonate, potassium bicarbonate, sodium bicarbonate, preferably cesium carbonate; the coupling reaction can be carried out in a suitable organic solvent or a mixed solvent of an organic solvent and water, wherein the organic solvent can be selected from 1, 4-dioxane, N-dimethylformamide or a mixed solvent of the organic solvent and water, such as a mixed solvent of 1, 4-dioxane and water; the coupling reaction is carried out under a suitable protective atmosphere (e.g. nitrogen atmosphere); the reaction temperature may be 0-150 ℃, preferably 100-; the reaction time is in the range of 2 to 48 hours, preferably 8 to 12 hours.

(2) A process for the preparation of formula I:

wherein R is₁、R₃X, Y, W, Q, n, m and r are as defined above.

Route 1:

step six: compound G produces a compound of formula I by condensation reaction with a carboxylic acid, aminolysis reaction of an ester, substitution reaction of a halide, or reductive amination reaction of an aldehyde, and the like.

Route 2:

The deprotection reaction is carried out in the presence of a deprotection reagent at low temperature, room temperature or under heating. The deprotection reagent used may be trifluoroacetic acid, hydrochloric acid, sulfuric acid, etc., preferably hydrochloric acid and trifluoroacetic acid; suitable organic solvents include halogenated hydrocarbons (e.g., chloroform, dichloromethane, dichloroethane), ethers (e.g., 1, 4-dioxane, tetrahydrofuran, dimethyl ether, diethyl ether, methyl tert-butyl ether), DMF and the like, preferably dichloromethane, tetrahydrofuran, 1, 4-dioxane; the reaction temperature may be 0 to 100 ℃, preferably 0 to 50 ℃; the reaction time is in the range of 0.5 to 24 hours, preferably 0.5 to 3 hours. More detailed procedures can be found in Greene's Protective Groups in Organic Synthesis (4th Edition), etc.

The condensation reaction of the carboxylic acid is carried out in the presence of a condensing agent and an organic base, wherein the condensing agent used can be HATU, HBTU, HCTU, HOBt/EDCI, DMC, DCC, DIC, EDCI, BOP, PyBOP, PyAOP and the like, and preferably HATU, HOBt/EDCI and EDCI; the organic base used may be TEA, DMAP, DIEA, pyridine, etc., preferably DIEA, TEA, pyridine: the condensation reaction may be carried out in an organic solvent, suitable organic solvents include DMF, halogenated hydrocarbons (e.g. chloroform, dichloromethane, dichloroethane), ethers (e.g. 1, 4-dioxane, tetrahydrofuran, dimethyl ether, diethyl ether, methyl tert-butyl ether); the reaction temperature may be 0 to 100 ℃, preferably 0 ℃ and room temperature; the reaction time is in the range of 1 to 24 hours, preferably 1 to 3 hours.

The aminolysis of the ester may be carried out in an organic solvent or an organic solvent containing a catalytic amount of a base or a lewis acid, suitable catalytic amounts of bases are sodium alkoxides, sodium hydride, lithium aluminum hydride, and the like, preferably sodium alkoxides; suitable catalytic amounts of Lewis acids have BBr₃、BF₃.EtO₂Etc., preferably BBr₃(ii) a Suitable organic solvents include MeOH, xylene, and the like; the reaction temperature may be 60 to 200 ℃, preferably 80 ℃ and 120 ℃; the reaction time is in the range of 1 to 96 hours, preferably 8 to 24 hours.

The substitution reaction of the halide is carried out in the presence of a base, which may be an inorganic base K₂CO₃、Na₂CO₃、Cs₂CO₃KOtBu, etc., preferably K₂CO₃(ii) a The base used may be organic base DBU, DIEA, TEA, pyridine, etc., preferably DBU; the substitution reaction may be carried out in an organic solvent, and suitable organic solvents include DMF, halogenated hydrocarbons (e.g. chloroform, dichloromethane, dichloroethane), ethers (e.g. 1, 4-dioxane, tetrahydrofuran, dimethyl ether, diethyl ether, methyl tert-butyl ether); the reaction temperature may be 0 to 100 ℃, preferably room temperature and 80 ℃; the reaction time is in the range of 1 to 96 hours, preferably 3 to 8 hours.

The reductive amination of the aldehyde is carried out in the presence of a reducing agent, which may be NaBH, and a catalytic amount of acid₄、Na(CN)BH₃、NaBH(OAc)₃Raney Ni, etc., preferably Na (CN) BH₃(ii) a The acid used in catalytic amount may be hydrochloric acid, HOAc, CF₃COOH, etc., preferably hydrochloric acid; the reductive amination reaction may be carried out in an organic solvent and water, and suitable organic solvents include MeOH, mixed solvents of MeOH and halogenated hydrocarbons (e.g., chloroform, dichloromethane, dichloroethane), and the like, preferably MeOH; the reaction temperature may be 0 to 100 ℃, preferably 60 ℃ and 80 ℃; the reaction time is 1-2Within the range of 4 hours, preferably 3 to 8 hours.

In addition, the compounds of the present invention can also be prepared in a variety of ways known to those skilled in the art of organic synthesis. The compounds of the present invention can be synthesized using the methods described below, as well as synthetic methods known in the art of synthetic organic chemistry, or variations thereof as would be understood by one of skill in the art. Preferred methods include, but are not limited to, those methods of preparation described above. The reaction may be carried out in a solvent or solvent mixture suitable for the reagents and materials used and for effecting the conversion. It will be appreciated by those skilled in the art of organic synthesis that the functional groups present on the molecule should be consistent with the proposed transformations. This will sometimes require the following judgment: the order of the synthetic steps is modified or another particular process route is selected with respect to one process route to obtain the desired compounds of the invention.

It will also be appreciated that another major consideration in the art of designing any synthetic route is the proper selection of protecting groups for protecting the reactive functional groups present in the compounds described herein. Authoritative descriptions of many alternatives described to trained relatives are Greene et al (Protective Groups in Organic Synthesis, 4th edition, Wiley-Interscience (2006)).

Unless otherwise indicated, the substituents of the compounds in the above schemes are as defined herein. One skilled in the art will appreciate that one or more steps in the above route may be omitted depending on the desired resulting product structure. The order of the reaction steps can also be appropriately adjusted as necessary by those skilled in the art.

In this application, when chemical names and structural formulae are inconsistent, the structural formulae should be taken as a control unless the context suggests that the chemical name and not the structural formula is correct.

Pharmaceutical composition and pharmaceutical preparation

It is another object of the present invention to provide a pharmaceutical composition comprising a prophylactically or therapeutically effective amount of a compound of the present invention, or a pharmaceutically acceptable salt, ester, stereoisomer, tautomer, polymorph, solvate, metabolite, or prodrug thereof, or a mixture thereof, and one or more pharmaceutically acceptable carriers.

By "pharmaceutically acceptable carrier" in the context of the present invention is meant a diluent, adjuvant, excipient, or vehicle that is administered together with a therapeutic agent and which is, within the scope of sound medical judgment, suitable for contact with the tissues of humans and/or other animals without excessive toxicity, irritation, allergic response, or other problem or complication commensurate with a reasonable benefit/risk ratio.

Pharmaceutically acceptable carriers that may be employed in the pharmaceutical compositions of the present invention include, but are not limited to, sterile liquids, such as water and oils, including those of petroleum, animal, vegetable or synthetic origin, such as peanut oil, soybean oil, mineral oil, sesame oil and the like. Water is an exemplary carrier when the pharmaceutical composition is administered intravenously. Physiological saline and aqueous dextrose and glycerol solutions can also be employed as liquid carriers, particularly for injectable solutions. Suitable pharmaceutical excipients include starch, glucose, lactose, sucrose, gelatin, maltose, chalk, silica gel, sodium stearate, glycerol monostearate, talc, sodium chloride, dried skim milk, glycerol, propylene glycol, water, ethanol and the like. The composition may also optionally contain minor amounts of wetting agents, emulsifying agents, or pH buffering agents. Oral formulations may contain standard carriers such as pharmaceutical grades of mannitol, lactose, starch, magnesium stearate, sodium saccharine, cellulose, magnesium carbonate and the like. Examples of suitable pharmaceutically acceptable carriers are described in Remington's pharmaceutical sciences (1990).

The pharmaceutical compositions of the present invention may act systemically and/or locally. For this purpose, they may be administered by a suitable route, for example by injection (e.g. intravenous, intra-arterial, subcutaneous, intraperitoneal, intramuscular injection, including instillation) or transdermally; or by oral, buccal, nasal, transmucosal, topical, in the form of ophthalmic preparations or by inhalation.

For these routes of administration, the pharmaceutical compositions of the present invention may be administered in suitable dosage forms. Such dosage forms include, but are not limited to, tablets, capsules, lozenges, hard candies, powders, sprays, creams, ointments, suppositories, gels, pastes, lotions, ointments, aqueous suspensions, injectable solutions, elixirs, syrups, and the like.

The compound of the invention may be present in the pharmaceutical composition in an amount or amount of about 0.01mg to about 1000 mg.

According to one embodiment of the invention, the pharmaceutical composition may further comprise one or more other therapeutic agents, for example other therapeutic agents for preventing or treating diseases associated with the inhibition of factor XIa.

It is another object of the present invention to provide a process for preparing a pharmaceutical composition of the present invention, said process comprising combining a compound of the present invention, or a pharmaceutically acceptable salt, ester, stereoisomer, tautomer, polymorph, solvate, hydrate, metabolite or prodrug thereof, or a mixture thereof, with one or more pharmaceutically acceptable carriers.

It is another object of the present invention to provide a pharmaceutical formulation comprising a compound of the present invention or a pharmaceutically acceptable salt, ester, stereoisomer, tautomer, polymorph, solvate, metabolite or prodrug thereof, or a mixture thereof, or a pharmaceutical composition of the present invention.

Methods of treatment and uses

Another object of the present invention is to provide a use of a compound of the present invention or a pharmaceutically acceptable salt, ester, stereoisomer, tautomer, polymorph, solvate, metabolite or prodrug thereof, or a mixture thereof, or a pharmaceutical composition of the present invention for the preparation of a medicament for the prophylaxis or treatment of diseases associated with the inhibition of factor XIa.

Another object of the present invention is to provide a compound of the present invention or a pharmaceutically acceptable salt, ester, stereoisomer, tautomer, polymorph, solvate, metabolite or prodrug thereof, or a mixture of same or a pharmaceutical composition of the present invention, for use in the prevention or treatment of diseases associated with the inhibition of factor XIa.

It is another object of the present invention to provide a method for preventing or treating diseases associated with the inhibition of factor XIa, said method comprising administering to a subject in need thereof an effective amount of a compound of the present invention or a pharmaceutically acceptable salt, ester, stereoisomer, tautomer, polymorph, solvate, metabolite or prodrug thereof, or a mixture thereof, or a pharmaceutical composition of the present invention.

According to one embodiment of the invention, factor XIa inhibition associated with the prevention or treatment using the compounds of the present invention includes, but is not limited to, thromboembolic disorders, preferably including arterial cardiovascular thromboembolic disorders, venous cardiovascular thromboembolic disorders, and thromboembolic disorders of the heart chambers.

More preferably, the thromboembolic disorder comprises unstable angina, acute coronary syndrome, atrial fibrillation, first myocardial infarction, recurrent myocardial infarction, sudden ischemic death, transient ischemic attack, stroke, atherosclerosis, peripheral occlusive arterial disease, venous thrombosis, deep vein thrombosis, thrombophlebitis, arterial embolism, coronary arterial thrombosis, cerebral embolism, renal embolism, pulmonary embolism, and thrombosis resulting from exposure of (a) an artificial valve or other implant, (b) an indwelling catheter, (c) a stent, (d) extracorporeal circulation, (e) hemodialysis, or (f) exposure of blood to a thrombogenic artificial surface.

The term "effective amount" refers to an amount of a compound that, when administered, will alleviate one or more symptoms of the condition being treated to some extent.

The dosing regimen may be adjusted to provide the best desired response. For example, a single bolus may be administered, several divided doses may be administered over time, or the dose may be proportionally reduced or increased as indicated by the exigencies of the therapeutic situation. It is noted that dosage values may vary with the type and severity of the condition being alleviated, and may include single or multiple doses. It is further understood that for any particular individual, the specific dosage regimen will be adjusted over time according to the individual need and the professional judgment of the person administering the composition or supervising the administration of the composition.

The amount of a compound of the invention administered will depend on the subject being treated, the severity of the disorder or condition, the rate of administration, the disposition of the compound, and the judgment of the prescribing physician. Generally, an effective dose is from about 0.0001 to about 50mg per kg body weight per day, e.g., from about 0.01 to about 10 mg/kg/day (single or divided administration). For a 70kg human, this may amount to about 0.007 mg/day to about 3500 mg/day, e.g., about 0.7 mg/day to about 700 mg/day. In some cases, dosage levels not higher than the lower limit of the aforesaid range may be sufficient, while in other cases still larger doses may be employed without causing any harmful side effects, provided that the larger dose is first divided into several smaller doses to be administered throughout the day.

As used herein, unless otherwise specified, the term "treating" or "treatment" means reversing, alleviating, inhibiting the progression of, or preventing such a disorder or condition, or one or more symptoms of such a disorder or condition, to which such term applies.

As used herein, "individual" includes a human or non-human animal. Exemplary human individuals include human individuals (referred to as patients) having a disease (e.g., a disease described herein) or normal individuals. "non-human animals" in the context of the present invention include all vertebrates, such as non-mammals (e.g., birds, amphibians, reptiles) and mammals, such as non-human primates, livestock and/or domesticated animals (e.g., sheep, dogs, cats, cows, pigs, etc.).

Detailed Description

In order to make the objects and technical solutions of the present invention clearer, the present invention is further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, specific experimental methods not mentioned in the following examples were carried out according to the usual experimental methods.

The structures of the compounds described in the following examples were determined by nuclear magnetic resonance (¹HNMR) or Mass Spectrometry (MS).

¹HNMR shifts (. delta.) in parts per million (ppm)The units are given.¹HNMR was measured by JEOL Eclipse400 NMR spectrometer using deuterated methanol (CD) as the solvent₃OD), deuterated chloroform (CDCl)₃) Hexadeuterio dimethyl sulfoxide (DMSO-d6), internal standard Tetramethylsilane (TMS), chemical shift is 10^-6(ppm) is given as a unit.

Abbreviations in the Nuclear Magnetic Resonance (NMR) data used in the examples are shown below:

s: singlet, d: doublet, t: triplet, q: quartet, dd: doublet, qd: quartet, ddd: double doublet, ddt: double triplet, dddd: double doublet, m: multiplet, br: broad (broad), J: coupling constant, Hz: hertz.

Determination of MS was performed using an agilent (esi) mass spectrometer, manufacturer: agilent, model: agilent 6120B;

preparation of high performance liquid chromatography (YMC, ODS, 250X 20mml column) was prepared using Shimadzu LC-8A.

Thin layer chromatography silica gel plate (TLC) an aluminum plate (20X 20cm) from Merck was used, and the specification for separation and purification by thin layer chromatography was GF254(0.4-0.5nm) from Nicotiana.

The reaction was monitored by Thin Layer Chromatography (TLC) or LCMS using the following developer systems: dichloromethane and methanol system, n-hexane and ethyl acetate system, petroleum ether and ethyl acetate system, and volume ratio of solvent is regulated according to different polarities of the compounds or by adding triethylamine and the like.

The microwave reaction used a BiotageInitiator + (400W, RT-300 ℃ C.) microwave reactor.

Column chromatography generally uses Qingdao ocean 200-mesh and 300-mesh silica gel as a carrier. The system of eluents comprises: the volume ratio of the solvent is adjusted according to different polarities of the compounds, and a small amount of triethylamine can be added for adjustment.

In the examples, the reaction temperature was room temperature (20 ℃ C. -30 ℃ C.)

The reagents used in the present invention may be prepared by conventional methods known in the art or may be commercially available, for example, from Acros Organics, Aldrich Chemical Company, Texas Chemical, and the like.

In the conventional synthesis methods, examples, and intermediate synthesis examples, the meanings of the abbreviations are as follows.

DMA: n, N-dimethylacetamide; DMSO, DMSO: dimethyl sulfoxide; NMP: n-methyl pyrrolidone; DIBAL-H: diisobutylaluminum hydride; DIPEA: n, N-diisopropylethylamine; THF: tetrahydrofuran; boc: a tert-butoxycarbonyl group; NBS: n-bromosuccinimide; Cbz-Cl: benzyl chloroformate; TFA: trifluoroacetic acid; et (Et)₂O: diethyl ether; EtOH: ethanol; a Dioxane: 1, 4-dioxane; TLC: thin layer chromatography; me: a methyl group; MTBE: methyl tert-butyl ether; HATU: o- (7-azabenzotriazol-1-yl) -N, N' -tetramethyluronium hexafluorophosphate; DCM: dichloromethane; EA: ethyl acetate; XPhos: 2-dicyclohexylphosphine-2 ', 4 ', 6 ' -triisopropylbiphenyl; PE: petroleum ether; hexane: n-hexane; HAc: acetic acid; tBu: a tertiary butyl group; DMF: n, N-dimethylformamide; DIPEA: n, N-diisopropylethylamine; MeCN: acetonitrile; HEPES (high efficiency particulate air): 4-hydroxyethyl piperazine ethanesulfonic acid.

Example 1: preparation of 4- ((S) -5- (1- ((2S, 3R, 4S, 5S) -5-carboxy-2, 3, 4, 5-tetrahydroxypentyl) -1, 2, 3, 6-tetrahydropyridin-4-yl) -2- ((R) -3- (3-chloro-2-fluorophenyl) -4, 5-dihydroisoxazole-5-carbonyl) -1, 2, 3, 4-tetrahydroisoquinoline-1-carboxamide) benzoic acid (1):

the first step is as follows: preparation of tert-butyl 4- (1- ((4- (tert-butoxycarbonyl) phenyl) carbamoyl) -1, 2, 3, 4-tetrahydroisoquinolin-5-yl) -5, 6-dihydropyridine-1 (2H) -carboxylate (1-3)

The compound tert-butyl 4- (5-bromo-1, 2, 3, 4-tetrahydroisoquinoline-1-carboxamide) benzoate hydrochloride (1-1, 20g, 43mmol), tert-butyl 4- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) -5, 6-dihydropyridine-1 (2H) -carboxylate (1-2, 14.6g, 47.3mmol) and sodium carbonate (29g, 215mmol) were dissolved in 1, 4-dioxanoneHexacyclic ring/water (5/1) mixed solvent (180mL) in N₂Adding Pd (dppf) Cl under an atmosphere₂(3.1g, 4.3mmol) and then placed in an oil bath at 120 ℃ to react overnight. The reaction was cooled to room temperature, quenched with water, extracted with ethyl acetate, concentrated, and isolated by column chromatography to give the title compound (1-3, 20.7g, yield: 90.3%).

MS m/z(ESI)：534[M+H]⁺

The second step is that: preparation of tert-butyl (S) -4- (1- ((4- (tert-butoxycarbonyl) phenyl) carbamoyl) -1, 2, 3, 4-tetrahydroisoquinolin-5-yl) -5, 6-dihydropyridine-1 (2H) -carboxylate (1-4)

After the compounds 1 to 3(32.6g) were separated by manual HPLC (Column: IF Column; mobile phase hexane/EtOH/HAc: 80/20/0.1 (V/V); flow rate: 1.0 ml/min; detection wavelength: 214 nm; retention time: 11.97min), the title compound (1 to 4, 11.7g, yield: 35.9%) was obtained.

MS m/z(ESI)：534[M+H]⁺

Specific rotation

(c＝1.94mg/ml，MeOH)

The third step: preparation of ((S) -1- ((4- (tert-butoxycarbonyl) phenyl) carbamoyl) -2- ((R) -3- (3-chloro-2-fluorophenyl) -4, 5-dihydroisoxazole-5-carbonyl) -1, 2, 3, 4-tetrahydroisoquinolin-5-yl) -5, 6-dihydropyridine-1 (2H) -carboxylic acid tert-butyl ester (1-6)

Compound 1-4(10g, 19mmol), (R) -3- (3-chloro-2-fluorobenzene) -4, 5-dihydroisoxazole-5-carboxylic acid (1-5, 4.6g, 19mmol) was dissolved in DMF (25mL), DIPEA (7.4g, 57mmol) and HATU (8.7g, 23mmol) were added, after completion of the addition, the reaction was stirred at room temperature overnight, added to water, stirred for 10 min, filtered, the filter cake was dried and purified by silica gel column to give the title compound (1-6, 12.6g, yield: 85.4%).

¹HNMR(500MHz，DMSO)δ：10.92(s，1H)，7.87-7.86(d，2H)，7.77-7.56(m，4H)，7.57-7.56(d，1H)，7.36-7.26(m，2H)，7.15-7.13(d，1H)，5.83(s，1H)，5.79-5.75(m，1H)，5.63(brs，1H)，4.29-4.23(m，1H)，400(brs，2H)，3.91-3.86(m，1H)，3.75-3.68(m，2H)，3.58(m，2H)，3.16-3.10(m，1H)，3.00-2.95(m，1H)，2.39-2.26(m，2H)，1.55(s，9H)，1.47(s，9H).

MS m/z(ESI)：759[M+H]⁺

The fourth step: preparation of 4- ((S) -2- ((R) -3- (3-chloro-2-fluorophenyl) -4, 5-dihydroisoxazole-5-carbonyl) -5- (1, 2, 3, 6-tetrahydropyridin-4-yl) -1, 2, 3, 4-tetrahydroisoquinoline-1-carboxamido) benzoic acid hydrochloride (1-7)

Compound 1-6(200mg, 0.26mmol) was dissolved in THF (5mL), cooled to 0 ℃ in an ice bath, and 1, 4-dioxane hydrochloride solution (4M, 3mL) was added dropwise, after dropwise addition, stirring was carried out at room temperature for 2 hours, LC-MS monitored completion of the reaction, ether (50mL) was added, cooled to 0 ℃ and stirred for 30 minutes, followed by filtration, and the filter cake was dried to give the title compound (1-7, 103mg, yield: 56.3%).

MS m/z(ESI)：603[M+H]⁺

The fifth step: preparation of 4- ((S) -5- (1- ((2S, 3R, 4S, 5S) -5-carboxy-2, 3, 4, 5-tetrahydroxypentyl) -1, 2, 3, 6-tetrahydropyridin-4-yl) -2- ((R) -3- (3-chloro-2-fluorophenyl) -4, 5-dihydroisoxazole-5-carbonyl) -1, 2, 3, 4-tetrahydroisoquinoline-1-carboxamide) benzoic acid (1)

Compounds 1-7(350mg, 0.58mmol) were dissolved in methanol-hydrochloric acid buffer (40mL) at pH 4, D-glucuronic acid (1-8, 563.39mg, 2.90mmol) and sodium cyanoborohydride (182mg, 2.90mmol) were added sequentially, after addition, stirring was carried out at 60 ℃ overnight, the solvent was evaporated, and the residue was isolated by preparative HPLC (formic acid/methanol/water) to give the title compound (280mg, 59.43%).

¹HNMR(400MHz，DMSO)δ：10.84(s，1H)，7.88-7.86(m，2H)，7.70-7.68(m，4H)，7.55(m，1H)，7.32-7.26(m，2H)，7.13(m，1H)，5.81(s，1H)，5.76(m，1H)，5.58(s，1H)，4.24(s，1H)，4.09-3.56(m，10H)，3.31-3.01(m，7H)，2.46(m，2H).

MS m/z(ESI)：781.1[M+H]⁺

Comparative example 1: 4- ((S) -2- ((R) -3- (3-chloro-2-fluorophenyl) -4, 5-dihydroisoxazole-5-carbonyl) -5- (1- ((2S, 3R, 4R, 5R) -2, 3, 4, 5, 6-pentahydroxyhexyl) -1, 2, 3, 6-tetrahydropyridin-4-yl) -1, 2, 3, 4-tetrahydroisoquinoline-1-carboxamido) benzoic acid formate (D1)

Compounds 1-7 were prepared according to the methods described in the first to fourth steps of example 1 above.

Preparation of 4- ((S) -2- ((R) -3- (3-chloro-2-fluorophenyl) -4, 5-dihydroisoxazole-5-carbonyl) -5- (1- ((2S, 3R, 4R, 5R) -2, 3, 4, 5, 6-pentahydroxyhexyl) -1, 2, 3, 6-tetrahydropyridin-4-yl) -1, 2, 3, 4-tetrahydroisoquinoline-1-carboxamido) benzoic acid formate (D1)

Compound 1-7(505mg, 0.84mmol) was dissolved in methanol buffer (30mL) pH 4-5, D-glucose (D1-8, 755mg, 4.2mmol) and sodium cyanoborohydride (264mg, 4.2mmol) were added sequentially, after addition, stirring was carried out at 60 ℃ overnight, the solvent was evaporated, and the residue was separated by HPLC (formic acid/methanol/water) to give the title compound (289mg, 44.9%).

¹HNMR(400MHz，DMSO)δ：10.96-10.86(s，1H)，8.23(s，1H)，7.89-7.86(d，2H)，7.73-7.68(m，5H)，7.55-7.52(d，1H)，7.34-7.23(m，2H)，7.12-7.08(s，1H)，5.80-5.73(m，3H)，5.58(s，1H)，4.24(s，1H)，3.83(m，2H)，3.69-3.60(m，5H)，3.50-2.65(m，13H)，2.37-2.34(d，2H).

MS m/z(ESI)：767[M+H]⁺

Solubility data

Experimental example I solubility test

Dissolving the compound to be detected in a buffer solution (10mM potassium dihydrogen phosphate, pH7.4) at room temperature until supersaturation, shaking by shaking a water bath, filtering by using a 0.45uM water system filter membrane, and detecting by using HPLC. 1mg of the test compound was accurately weighed and dissolved in a 10mL volumetric flask as a control and assayed by HPCL. The solubility of the test compound was calculated by external standard method.

TABLE 1 solubility of Compounds in buffer solution at pH7.4

Compound numbering	Solubility (mg/ml)
		1	0.88
D1	0.02

As can be seen from Table 1, the introduction of a carboxyl group at the terminal of the polyhydroxyalkyl group leads to a significant improvement in the solubility of the compounds of the present invention.

Pharmacological data

Experimental example II inhibitory Effect on factor XIa

Reagent:

enzyme: human coagulation factor XIa; the manufacturer: haemtech corporation;

substrate: Boc-Ile-Glu-Gly-Arg-AMC Acetate salt; the manufacturer: bachem;

the detection method comprises the following steps:

test compounds were dissolved in assay buffer (50mM HEPES, 145mM NaCl, 5mM KCl, 0.1% BSA, pH7.4) at various concentrations. Factor XIa and test compound were added to 384-well plates, mixed well and incubated for 10 min at room temperature. The reaction was initiated by the addition of substrate (Boc-Ile-Glu-Gly-Arg-AMC Acetate salt). In the enzyme kinetic mode, the fluorescence signal values were read by selecting the excitation wavelength to be 380nm and the emission wavelength to be 460 nm. Read 1 time every 30 seconds for 20 consecutive cycles. And calculating the enzyme activity inhibition rate of the compound at different concentrations in a linear reaction period. The compound concentration-inhibition signal curves were generated using the mapping software GraphPadPrism 5, and the IC was calculated by fitting the curves according to a four-parameter model₅₀The value is obtained.

TABLE 1 inhibitory Effect of Compounds on factor XIa

Compound numbering	IC₅₀(nM)
		1	0.37±0.05

As can be seen from table 1, the compounds of the present invention have a significant inhibitory effect on factor XIa.

Third example, Selective inhibition of factor VIIa and factor Xa enzymes

Reagent:

enzyme: human coagulation factor VIIa; the manufacturer: haematologic Technologies, Inc.;

tissue factor: tissue factor F3; the manufacturer: sino Biological;

substrate: Boc-VPR-AMC; the manufacturer: r & D;

enzyme: human coagulation factor Xa: the manufacturer: r & D;

substrate: Mca-RPKPVE-Nval-WRK (Dnp) -NH 2; the manufacturer: r & D;

the selective inhibition detection method of human blood coagulation factor VIIa enzyme comprises the following steps:

the test compound was dissolved in detection buffer (50mM Hepes, 150mM NaCl, 5mM CaCl) at final reaction concentrations of 10. mu.M and 1. mu.M₂0.1% BSA, pH 7.4). Coagulation factor VIIa and tissue factor are mixed in equimolar concentration, incubated at 37 ℃ for 15 minutes, added with the test compound, incubated at room temperature for 10 minutes, and then added with a substrate (Boc-VPR-AMC) to start the reaction. The fluorescence signal value is read by adopting an enzyme kinetic mode, wherein the excitation light wavelength is 380nm, and the emission light wavelength is 460 nm. Read 1 time every 30 seconds for 20 consecutive cycles. And calculating the enzyme activity inhibition rate of the compound at different concentrations in a linear reaction period. Judging IC according to the inhibition rate under different concentrations₅₀The range of (1).

The selective inhibition detection method for the activity of human blood coagulation factor Xa enzyme comprises the following steps:

the test compound was dissolved in the detection buffer (50mM Tris, 150mM NaCl, 10mM CaCl) at the final reaction concentrations of 10. mu.M and 1. mu.M₂0.05% Brij35, pH 7.5). The coagulation factor Xa and the test compound were added to the well plate, mixed well and incubated for 10 minutes at room temperature. Adding substrate (Mca-RPKPVE-Nval-WRK (Dnp) -NH)₂) The reaction was started. The fluorescence signal value is read by adopting an enzyme kinetic mode and selecting the excitation light wavelength to be 320nm and the emission light wavelength to be 400 nm. Read 1 time every 30 seconds for 20 consecutive cycles. And calculating the enzyme activity inhibition rate of the compound at different concentrations in a linear reaction period. Judging IC according to the inhibition rate under different concentrations₅₀The range of (1).

TABLE 2 inhibitory Effect of Compounds on coagulation factors Xa and VIIa

As can be seen from Table 2, the IC of the compounds of the invention against the coagulation factors Xa and VIIa₅₀Both above 10. mu.M, indicate that the compounds of the invention are significantly non-inhibitory to factors Xa and VIIa and have a low bleeding tendency.

As is apparent from the experimental results of the above experimental examples two and three, the compounds of the present invention have excellent selective inhibitory effects on factor XIa relative to factor Xa and VIIa.

Experimental example four Effect of Compounds on in vitro coagulation

Reagent:

aPTT reagent; (iii) xisenmeikang;

a PT reagent; (iii) xisenmeikang;

the coagulation pathway includes the extrinsic coagulation pathway and the intrinsic coagulation pathway. The parameter associated with the extrinsic coagulation pathway is prothrombin time, expressed as pt (prothrombin time); the parameter associated with the intrinsic coagulation pathway is the activated partial thromboplastin time, expressed as aPTT (activated partial thromboplastin time). Since the intrinsic coagulation pathway is closely related to pathological thrombosis and not essential for hemostatic function, selective inhibition of intrinsic coagulation factors can reduce the risk of bleeding. Therefore, it is desirable for an anticoagulant drug to prolong aPTT (activated partial thromboplastin time) without substantially affecting PT (prothrombin time) to achieve a suitable anticoagulant effect.

aPTT (activated partial thromboplastin time) and PT (prothrombin time) assay methods:

after anticoagulation of rabbit blood, centrifuging to collect upper plasma, taking a certain amount of plasma, adding a compound 1 to be detected to make the final concentration of the plasma be 10 mu M, and then putting a sample into a blood coagulation analyzer for detection of aPTT and PT. Blank plasma (without compound) was used as a reference and the ratio of aPTT and PT of test compound 1 to blank plasma was analyzed.

Table 3 effect of compounds on rabbit aPTT and PT (n ═ 3)

	aPTT ratio to blank plasma	PT ratio to blank plasma
			Compound 1	1.84±0.31	1.04±0.02

The compounds of the present invention are excellent selective inhibitors of XIa, which is associated with the intrinsic coagulation pathway, and as can be seen from table 3, the addition of compound 1 of the present invention results in a significant prolongation of aPTT compared to the blank plasma without the addition of the test compound, indicating that the compounds of the present invention achieve anti-intrinsic coagulation effects by selectively inhibiting XIa. Compared with the blank plasma without the test compound, the PT value related to the extrinsic coagulation pathway is not obviously changed by adding the compound, which shows that the compound has no influence on the extrinsic coagulation pathway.

Claims

1. A compound, or a pharmaceutically acceptable salt, ester, stereoisomer, tautomer, polymorph, solvate, isotopically labeled compound, metabolite, or prodrug thereof, wherein said compound has the structure of formula (I),

wherein:

represents a single bond or a double bond;

x is CH₂Or C ═ O;

y is selected from

W is selected from CR₄、CR_4aR_4bAnd C (═ O);

q is selected from N, C and CR₂；

n is selected from any integer between 3 and 12, inclusive, preferably 3, 4, 5, 6, 7 and 8;

m is an integer of 1, 2, 3, 4 or 5, r is 0, 1 or 2.

2. The compound of claim 1, or a pharmaceutically acceptable salt, ester, stereoisomer, tautomer, polymorph, solvate, isotopically labeled compound, metabolite, or prodrug thereof, wherein:

R₁each occurrence is independently selected from H, fluoro, chloro, bromo, cyano and 5-membered heteroaryl (e.g., 5-membered nitrogen-containing heteroaryl), and a plurality of R are₁May be the same or different from each other.

3. The compound of claim 1 or 2, or a pharmaceutically acceptable salt, ester, stereoisomer, tautomer, polymorph, solvate, isotopically labeled compound, metabolite, or prodrug thereof, wherein the compound has the structure of formula (II):

wherein:

n is selected from 3, 4, 5 or 6;

R₃each occurrence of R is independently selected from H and hydroxy, and R is independently selected from H and hydroxy₃May be the same or different from each other, and has at least 1R₃Not H, preferably at least 2R₃Is not H, more preferably at least 3R₃Is not H;

R₁y, W, Q, m and r are as defined in any one of claims 1-2.

4. A compound of any one of claims 1-3, or a pharmaceutically acceptable salt, ester, stereoisomer, tautomer, polymorph, solvate, isotopically labeled compound, metabolite, or prodrug thereof, wherein the compound has the structure of formula (II-1):

wherein m is selected from 2 and 3, R₁、R₃Y, W, Q, n and r are as defined in any one of claims 1 to 3.

5. The compound of any one of claims 1-4, or a pharmaceutically acceptable salt, ester, stereoisomer, tautomer, polymorph, solvate, isotopically labeled compound, metabolite, or prodrug thereof, wherein the compound has the structure of formula (II-2):

wherein R is₁Is selected from H and

R₃y and n are as defined in any one of claims 1 to 4.

6. The compound of any one of claims 1-4, or a pharmaceutically acceptable salt, ester, stereoisomer, tautomer, polymorph, solvate, isotopically labeled compound, metabolite, or prodrug thereof, wherein the compound has the structure of formula (II-3):

wherein R is₁Is selected from H and

R₃y and n are as defined in any one of claims 1 to 4.

7. The compound of any one of claims 1-6, or a pharmaceutically acceptable salt, ester, stereoisomer, tautomer, polymorph, solvate, isotopically labeled compound, metabolite, or prodrug thereof, wherein the compound is selected from the group consisting of:

8. a pharmaceutical composition comprising a prophylactically or therapeutically effective amount of a compound according to any one of claims 1-7, or a pharmaceutically acceptable salt, ester, stereoisomer, tautomer, polymorph, solvate, isotopically labeled compound, metabolite or prodrug thereof, preferably further comprising a pharmaceutically acceptable adjuvant.

9. The pharmaceutical composition of claim 8, further comprising an additional active ingredient that can be combined with a compound of any one of claims 1-7, or a pharmaceutically acceptable salt, ester, stereoisomer, tautomer, polymorph, solvate, isotopically labeled compound, metabolite, or prodrug thereof.

10. A pharmaceutical formulation, wherein the formulation comprises a compound of any one of claims 1-7, a pharmaceutically acceptable salt, ester, stereoisomer, tautomer, polymorph, solvate, isotopically labeled compound, metabolite or prodrug thereof as an active ingredient, in the form of a solid, semi-solid, liquid or gaseous formulation.

11. Use of a compound, salt, ester, stereoisomer, tautomer, polymorph, solvate, isotopically labeled compound, metabolite or prodrug according to any one of claims 1 to 7, or a pharmaceutical composition according to any one of claims 8 to 9, or a pharmaceutical formulation according to claim 10, for the manufacture of a medicament for the treatment of a disease associated with the inhibition of factor XIa;

preferably, the disease associated with inhibition of factor XIa is a thromboembolic disorder, including arterial cardiovascular thromboembolic disorders, venous cardiovascular thromboembolic disorders, and thromboembolic disorders of the heart chamber;

more preferably, the thromboembolic disorder comprises unstable angina, acute coronary syndrome, atrial fibrillation, first myocardial infarction, recurrent myocardial infarction, sudden ischemic death, transient ischemic attack, stroke, atherosclerosis, peripheral occlusive arterial disease, venous thrombosis, deep vein thrombosis, thrombophlebitis, arterial embolism, coronary arterial thrombosis, cerebral embolism, renal embolism, pulmonary embolism, and thrombosis resulting from exposure of (a) an artificial valve or other implant, (b) an indwelling catheter, (c) a stent, (d) extracorporeal circulation, (e) hemodialysis, or (f) blood to a thrombogenic artificial surface.