GB1309692A - N-substituted lactams - Google Patents
N-substituted lactamsInfo
- Publication number
- GB1309692A GB1309692A GB697870A GB697870A GB1309692A GB 1309692 A GB1309692 A GB 1309692A GB 697870 A GB697870 A GB 697870A GB 697870 A GB697870 A GB 697870A GB 1309692 A GB1309692 A GB 1309692A
- Authority
- GB
- United Kingdom
- Prior art keywords
- formula
- alkyl
- alkenyl
- hydrogen atom
- compound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D207/18—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member
- C07D207/22—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D207/24—Oxygen or sulfur atoms
- C07D207/26—2-Pyrrolidones
- C07D207/263—2-Pyrrolidones with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to other ring carbon atoms
- C07D207/27—2-Pyrrolidones with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to other ring carbon atoms with substituted hydrocarbon radicals directly attached to the ring nitrogen atom
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Neurosurgery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Pyrrole Compounds (AREA)
- Hydrogenated Pyridines (AREA)
- Plural Heterocyclic Compounds (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
Abstract
1309692 N-Amidoaldyllactams UCB SA 19 April 1971 [13 Feb 1970] 6978/70 Addition to 1039113 Heading C2C Novel compounds of Formula I wherein X is a hydrogen atom or an alkyl, alkenyl or alkynyl radical containing 1 to 6 carbon atoms, p is a whole number of from 1 to 6, Y is a hydrogen atom or an alkyl, alkenyl or alkynyl radical containing 1 to 6 carbon atoms or a cycloalkyl radical and R<SP>1</SP> and R<SP>11</SP>, which may be the same or different, are hydrogen atoms or alkyl, alkenyl, alkynyl, cycloalkyl or aryl radicals or R<SP>1</SP> and R<SP>11</SP>, together with the nitrogen atom to which they are attached, form a heterocyclic radical which may contain further heteroatoms, with the proviso that at least one of the symbols X and Y is other than a hydrogen atom are prepared by one of the following methods: (a) a compound of formula wherein M is an alkali metal atom is reacted with a compound of formula (b) an ester of Formula IV where Alk is alkyl or (c) an acid chloride of Formula VI is reacted with the amine H.N.R<SP>1</SP>R<SP>11</SP>, and (d) an ammonium salt of formula is heated. Esters of Formula IV above are prepared by reacting the sodium derivative of the appropriate pyrrolidin-2-one with the appropriate alkyl haloalkylcarboxylate and optionally hydrolysed to the corresponding acids which may be converted into their ammonium salts and acid chlorides by reaction with ammonia or thionyl chloride respectively. Pharmaceutical compositions in conventional forms for oral, parenteral or rectal administration to be used in treatment of motion sickness, hyperkinesia, hypertonia, epilepsy and mnesic conditions comprise an above novel compound and an excipient.
Priority Applications (20)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB697870A GB1309692A (en) | 1970-02-13 | 1970-02-13 | N-substituted lactams |
FR7104195A FR2081508B2 (en) | 1970-02-13 | 1971-02-08 | |
NLAANVRAGE7101697,A NL168830C (en) | 1970-02-13 | 1971-02-09 | PROCESS FOR PREPARING THERAPEUTIC PREPARATIONS AND PROCESS FOR PREPARING AMIDS SUITABLE FOR THESE |
BE762728A BE762728R (en) | 1970-02-13 | 1971-02-10 | NEW LACTAMES N-SUBSTITUTES |
FI383/71A FI54916C (en) | 1970-02-13 | 1971-02-10 | FRAMEWORK FOR THERAPEUTIC TREATMENT OF NUTRITIONAL N-SUBSTITUTE 2-PYRROLIDONER |
ES388135A ES388135A2 (en) | 1970-02-13 | 1971-02-10 | N-substituted lactams |
CS987A CS167911B2 (en) | 1970-02-13 | 1971-02-10 | |
YU306/71A YU34876B (en) | 1970-02-13 | 1971-02-10 | Process for obtaining novel n-substituted pyrrolidines |
DK59571AA DK137451B (en) | 1970-02-13 | 1971-02-10 | Analogous process for the preparation of derivatives of 2-oxo-pyrrolidine. |
CH200171A CH530395A (en) | 1970-02-13 | 1971-02-11 | Process for the preparation of new N-substituted lactams |
ZA710877A ZA71877B (en) | 1970-02-13 | 1971-02-11 | New n-substituted lactams |
DE2106418A DE2106418C2 (en) | 1970-02-13 | 1971-02-11 | N-substituted 2-pyrrolidone derivatives, processes for their preparation and pharmaceuticals containing them |
JP612471A JPS535301B1 (en) | 1970-02-13 | 1971-02-12 | |
SU1893858A SU508186A3 (en) | 1970-02-13 | 1971-02-12 | The method of obtaining-substituted lactams |
SU1621307A SU508185A3 (en) | 1970-02-13 | 1971-02-12 | The method of obtaining-substituted lactams |
CS140674A CS167912B2 (en) | 1970-02-13 | 1971-12-10 | |
CY72774A CY727A (en) | 1964-08-06 | 1974-03-01 | New n-substituted lactams |
MY197472A MY7400072A (en) | 1970-02-13 | 1974-12-31 | New n-substituted lactams |
JP13335277A JPS53130656A (en) | 1970-02-13 | 1977-11-07 | Method of producing novel nnsubstituted lactams |
YU01445/78A YU144578A (en) | 1970-02-13 | 1978-06-19 | Process for obtaining new n-substituted pyrrolidones |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB697870A GB1309692A (en) | 1970-02-13 | 1970-02-13 | N-substituted lactams |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1309692A true GB1309692A (en) | 1973-03-14 |
Family
ID=9824325
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB697870A Expired GB1309692A (en) | 1964-08-06 | 1970-02-13 | N-substituted lactams |
Country Status (15)
Country | Link |
---|---|
JP (2) | JPS535301B1 (en) |
BE (1) | BE762728R (en) |
CH (1) | CH530395A (en) |
CS (2) | CS167911B2 (en) |
DE (1) | DE2106418C2 (en) |
DK (1) | DK137451B (en) |
ES (1) | ES388135A2 (en) |
FI (1) | FI54916C (en) |
FR (1) | FR2081508B2 (en) |
GB (1) | GB1309692A (en) |
MY (1) | MY7400072A (en) |
NL (1) | NL168830C (en) |
SU (2) | SU508186A3 (en) |
YU (2) | YU34876B (en) |
ZA (1) | ZA71877B (en) |
Cited By (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2368275A1 (en) * | 1976-10-19 | 1978-05-19 | Ucb Sa | 2- (2-OXO-PYRROLIDINO) -ALKYLAMIDES FOR THE TREATMENT OF VASCULAR DISORDERS |
DE2808067A1 (en) * | 1977-03-03 | 1978-09-07 | Parke Davis & Co | N- (SUBSTITUTED AMINOALKYL) -2-OXO-1- PYRROLIDINE ACETAMIDE AND METHOD FOR THE PREPARATION |
US4221789A (en) | 1978-05-08 | 1980-09-09 | Ucb, Societe Anonyme | Lactam-N-acetic acids and their amides |
EP0071216A2 (en) * | 1981-07-24 | 1983-02-09 | F. HOFFMANN-LA ROCHE & CO. Aktiengesellschaft | 3-Hydroxypyrrolidin-2-one derivatives, process and intermediates for their preparation and pharmaceutical preparations containing them |
EP0089900A1 (en) * | 1982-03-24 | 1983-09-28 | Prodes S.A. | New N-((2-oxo-1-pyrrolidinyl)acetyl)piperazines, the methods of producing such new compounds and their salts as well as pharmaceutical preparations for therapeutic use containing these compounds or salts |
JPS60252461A (en) * | 1984-05-15 | 1985-12-13 | ユセベ ソシエテ アノニム | (s)-alpha-ethyl-2-oxo-1-pyrrolidine acetamide, manufacture and pharmaceutical composition |
JPS60255764A (en) * | 1984-05-15 | 1985-12-17 | ユセベ ソシエテ アノニム | (r)-alpha-ethyl-2-oxo-1-pyridineacetamide, manufacture and pharmaceutical composition |
US4670456A (en) * | 1984-05-30 | 1987-06-02 | Boehringer Ingelheim Kg | 4-Aminocarbonylaminomethyl-1-benzylpyrrolidin-2-ones as nootropic agents and as agents for treating cerebral insufficiency |
US4929272A (en) * | 1986-09-12 | 1990-05-29 | Ciba-Geigy Corporation | N-phenyl-maleimides and N-phenyl-succinimides and their use in a herbicidal and/or plant growth regulating action |
GB2225322A (en) * | 1988-11-23 | 1990-05-30 | Ucb Sa | The preparation of S-alpha-ethyl-2-oxo-1-pyrrolidineacetamide |
WO2001062726A2 (en) * | 2000-02-23 | 2001-08-30 | Ucb, S.A. | 2-oxo-1-pyrrolidine derivatives, processes for preparing them and their uses |
WO2002026705A2 (en) * | 2000-09-29 | 2002-04-04 | Eastman Chemical Company | Highly enantiomerically pure lactam-substituted propanoic acid derivatives and their preparation |
WO2002094787A1 (en) * | 2001-05-23 | 2002-11-28 | Ucb, S.A. | 2-oxo-piperidinyl- and 2-oxo-azepanyl alkanoic acid derivativ es for the treatment of epilepsy and other neurological disorders |
WO2003014080A2 (en) * | 2001-08-10 | 2003-02-20 | Ucb, S.A. | Oxopyrrolidine compounds, preparation of said compounds and their use in the manufacturing of levetiracetam and analogues |
WO2003030899A2 (en) * | 2001-10-08 | 2003-04-17 | Ucb, S.A. | Use of 2-oxo-1-pyrrolidine derivatives for the treatment of dyskinesia and movement disorders |
ES2214147A1 (en) * | 2003-02-28 | 2004-09-01 | Farma-Lepori S.A. | Method of obtaining an antiepileptic agent |
EP1566376A1 (en) | 2004-02-18 | 2005-08-24 | Dr. Reddy's Laboratories Limited | Preparation of amino acid amides |
WO2006053441A1 (en) | 2004-11-22 | 2006-05-26 | Apotex Pharmachem Inc. | Improved process for the preparation of (s)-alpha-etyl-2-oxo-1-pyrrolidineacetamide and (r)-alpha-ethyl-2-oxo-1-pyrrolidineacetamide |
WO2006095362A1 (en) * | 2005-03-10 | 2006-09-14 | Rubamin Limited | Process for preparing levetiracetam |
US7132552B2 (en) | 2003-02-03 | 2006-11-07 | Teva Pharmaceutical Industries, Ltd. | Process for producing levetiracetam |
EP2147911A1 (en) | 2008-07-24 | 2010-01-27 | ZaCh System S.p.A. | Process for the preparation of levetiracetam |
EP2308867A2 (en) | 2005-06-01 | 2011-04-13 | UCB Pharma S.A. | 2-oxo-1-pyrrolidine deriatives, processes for preparing them and their uses |
US7939676B2 (en) | 2009-09-17 | 2011-05-10 | Zach System S.P.A. | Process for the preparation of levetiracetam |
WO2011100373A1 (en) | 2010-02-09 | 2011-08-18 | The Johns Hopkins University | Methods and compositions for improving cognitive function |
US8604075B2 (en) | 2008-10-16 | 2013-12-10 | The Johns Hopkins University | Methods and compositions for improving cognitive function |
US8785661B2 (en) | 2009-05-13 | 2014-07-22 | Nektar Therapeutics | Oligome-containing pyrrolidine compounds |
WO2014144801A1 (en) | 2013-03-15 | 2014-09-18 | Agenebio Inc. | Methods and compositions for improving cognitive function |
CN104059010A (en) * | 2014-06-12 | 2014-09-24 | 浙江华海药业股份有限公司 | Preparation method of 2-(2-oxopyrrolidine-1-yl)-butyrate |
WO2015110435A1 (en) | 2014-01-21 | 2015-07-30 | Janssen Pharmaceutica Nv | Combinations comprising positive allosteric modulators or orthosteric agonists of metabotropic glutamatergic receptor subtype 2 and their use |
US10154988B2 (en) | 2012-11-14 | 2018-12-18 | The Johns Hopkins University | Methods and compositions for treating schizophrenia |
EP3827820A1 (en) | 2013-03-15 | 2021-06-02 | The Johns Hopkins University | Brivaracetam for improving cognitive function |
US11369606B2 (en) | 2014-01-21 | 2022-06-28 | Janssen Pharmaceutica Nv | Combinations comprising positive allosteric modulators or orthosteric agonists of metabotropic glutamatergic receptor subtype 2 and their use |
US11384050B1 (en) | 2021-02-03 | 2022-07-12 | Vitaworks Ip, Llc | Method for preparing levetiracetam and intermediates thereof |
WO2024039886A1 (en) | 2022-08-19 | 2024-02-22 | Agenebio, Inc. | Benzazepine derivatives, compositions, and methods for treating cognitive impairment |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1045043B (en) * | 1975-08-13 | 1980-04-21 | Isf Spa | PYROLIDINE DERIVATIVES |
IT1141287B (en) * | 1979-06-13 | 1986-10-01 | Nattermann A & Cie | PYROLIDIN ACIDS AMIDS- (2) -ON- (1) -ILALKYL-CARBOXYLS, PROCEDURE FOR THEIR PREPARATION AND MEDICINAL PRODUCTS CONTAINING THEM |
AR020115A1 (en) * | 1998-08-06 | 2002-04-10 | Daiichi Seiyaku Co | THERAPEUTIC OR PREVENTIVE AGENT FOR REBEL EPILEPSIES AND USE OF THE COMPOUND FOR THE SAME PRODUCTION |
CN106591179B (en) * | 2016-12-05 | 2018-07-03 | 长兴制药股份有限公司 | Methyl packing bacterium and its prepare the application on (S)-α-ethyl -2- oxygen -1- pyrrolidine acetic acid salt in selective fractionation |
RU2663899C1 (en) * | 2017-07-19 | 2018-08-13 | Федеральное государственное унитарное предприятие "Государственный научный центр "Научно-исследовательский институт органических полупродуктов и красителей" | Process for the preparation of 1-carbamoylmethyl-4-phenyl-2-pyrrolidone |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1039113A (en) * | 1964-08-06 | 1966-08-17 | Ucb Sa | New n-substituted lactams |
-
1970
- 1970-02-13 GB GB697870A patent/GB1309692A/en not_active Expired
-
1971
- 1971-02-08 FR FR7104195A patent/FR2081508B2/fr not_active Expired
- 1971-02-09 NL NLAANVRAGE7101697,A patent/NL168830C/en not_active IP Right Cessation
- 1971-02-10 YU YU306/71A patent/YU34876B/en unknown
- 1971-02-10 ES ES388135A patent/ES388135A2/en not_active Expired
- 1971-02-10 CS CS987A patent/CS167911B2/cs unknown
- 1971-02-10 DK DK59571AA patent/DK137451B/en not_active IP Right Cessation
- 1971-02-10 FI FI383/71A patent/FI54916C/en active
- 1971-02-10 BE BE762728A patent/BE762728R/en active
- 1971-02-11 ZA ZA710877A patent/ZA71877B/en unknown
- 1971-02-11 DE DE2106418A patent/DE2106418C2/en not_active Expired
- 1971-02-11 CH CH200171A patent/CH530395A/en not_active IP Right Cessation
- 1971-02-12 JP JP612471A patent/JPS535301B1/ja active Pending
- 1971-02-12 SU SU1893858A patent/SU508186A3/en active
- 1971-02-12 SU SU1621307A patent/SU508185A3/en active
- 1971-12-10 CS CS140674A patent/CS167912B2/cs unknown
-
1974
- 1974-12-31 MY MY197472A patent/MY7400072A/en unknown
-
1977
- 1977-11-07 JP JP13335277A patent/JPS53130656A/en active Granted
-
1978
- 1978-06-19 YU YU01445/78A patent/YU144578A/en unknown
Cited By (92)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2368275A1 (en) * | 1976-10-19 | 1978-05-19 | Ucb Sa | 2- (2-OXO-PYRROLIDINO) -ALKYLAMIDES FOR THE TREATMENT OF VASCULAR DISORDERS |
US4115579A (en) | 1976-10-19 | 1978-09-19 | U C B, Societe Anonyme | Process for inhibiting blood platelet aggregation |
DE2808067A1 (en) * | 1977-03-03 | 1978-09-07 | Parke Davis & Co | N- (SUBSTITUTED AMINOALKYL) -2-OXO-1- PYRROLIDINE ACETAMIDE AND METHOD FOR THE PREPARATION |
US4221789A (en) | 1978-05-08 | 1980-09-09 | Ucb, Societe Anonyme | Lactam-N-acetic acids and their amides |
EP0071216B1 (en) * | 1981-07-24 | 1986-12-30 | F. HOFFMANN-LA ROCHE & CO. Aktiengesellschaft | 3-hydroxypyrrolidin-2-one derivatives, process and intermediates for their preparation and pharmaceutical preparations containing them |
EP0071216A2 (en) * | 1981-07-24 | 1983-02-09 | F. HOFFMANN-LA ROCHE & CO. Aktiengesellschaft | 3-Hydroxypyrrolidin-2-one derivatives, process and intermediates for their preparation and pharmaceutical preparations containing them |
US5034402A (en) * | 1981-07-24 | 1991-07-23 | Hoffmann-La Roche Inc. | Methods and pharmaceutical compositions using pyrrolidine derivatives |
EP0089900A1 (en) * | 1982-03-24 | 1983-09-28 | Prodes S.A. | New N-((2-oxo-1-pyrrolidinyl)acetyl)piperazines, the methods of producing such new compounds and their salts as well as pharmaceutical preparations for therapeutic use containing these compounds or salts |
US4696942A (en) * | 1984-05-15 | 1987-09-29 | Ucb Societe Anonyme | Treatment of memory impairment using (R)-alpha-ethyl-2-oxo-1-pyrrolidineacetamide |
US4696943A (en) * | 1984-05-15 | 1987-09-29 | U C B Societe Anonyme | (S)-alpha-ethyl-2-oxo-1-pyrrolidineacetamide |
JPS60255764A (en) * | 1984-05-15 | 1985-12-17 | ユセベ ソシエテ アノニム | (r)-alpha-ethyl-2-oxo-1-pyridineacetamide, manufacture and pharmaceutical composition |
AU574175B2 (en) * | 1984-05-15 | 1988-06-30 | Ucb | (r)-alpha-ethyl-2-oxo-1-pyrrolidineacetamide |
AU574465B2 (en) * | 1984-05-15 | 1988-07-07 | Ucb | (s)-alpha-ethyl-2-oxo-1-pyrrolidineacetamide |
JPS60252461A (en) * | 1984-05-15 | 1985-12-13 | ユセベ ソシエテ アノニム | (s)-alpha-ethyl-2-oxo-1-pyrrolidine acetamide, manufacture and pharmaceutical composition |
JPH0629186B2 (en) | 1984-05-15 | 1994-04-20 | ユセベ ソシエテ アノニム | Anti-hypoxia and ischemia pharmacological composition |
US4670456A (en) * | 1984-05-30 | 1987-06-02 | Boehringer Ingelheim Kg | 4-Aminocarbonylaminomethyl-1-benzylpyrrolidin-2-ones as nootropic agents and as agents for treating cerebral insufficiency |
US4929272A (en) * | 1986-09-12 | 1990-05-29 | Ciba-Geigy Corporation | N-phenyl-maleimides and N-phenyl-succinimides and their use in a herbicidal and/or plant growth regulating action |
GB2225322A (en) * | 1988-11-23 | 1990-05-30 | Ucb Sa | The preparation of S-alpha-ethyl-2-oxo-1-pyrrolidineacetamide |
GB2225322B (en) * | 1988-11-23 | 1992-03-25 | Ucb Sa | A process for the preparation of (s)-alpha-ethyl-2-oxo-1-pyrrolidineacetamide |
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AU2001252144B2 (en) * | 2000-02-23 | 2005-04-28 | Ucb Biopharma Sprl | 2-oxo-1-pyrrolidine derivatives, processes for preparing them and their uses |
WO2001062726A2 (en) * | 2000-02-23 | 2001-08-30 | Ucb, S.A. | 2-oxo-1-pyrrolidine derivatives, processes for preparing them and their uses |
US6911461B2 (en) | 2000-02-23 | 2005-06-28 | Ucb, S.A. | 2-oxo-1-pyrrolidine derivatives, processes for preparing them and their uses |
MY139420A (en) * | 2000-02-23 | 2009-09-30 | Ucb Sa | 2-oxo-1-pyrrolidine derivatives, processes for preparing them and their uses |
EP1577296A1 (en) * | 2000-02-23 | 2005-09-21 | Ucb S.A. | 2-oxo-1-pyrrolidine derivatives, processes for preparing them and their use |
EP1604979A1 (en) * | 2000-02-23 | 2005-12-14 | UCB Farchim S.A. | 2-oxo-1-pyrrolidine derivative and its pharmaceutical uses |
US7358276B2 (en) | 2000-02-23 | 2008-04-15 | Ucb, S.A. | 2-Oxo-1-pyrrolidine derivatives, processes for preparing them and their uses |
US6977303B2 (en) | 2000-09-29 | 2005-12-20 | Eastman Chemical Company | Highly enantiomerically pure lactam-substituted propanoic acid derivatives and methods of making and using same |
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Also Published As
Publication number | Publication date |
---|---|
DE2106418C2 (en) | 1983-12-22 |
SU508185A3 (en) | 1976-03-25 |
FR2081508B2 (en) | 1975-06-06 |
DK137451B (en) | 1978-03-06 |
FI54916B (en) | 1978-12-29 |
SU508186A3 (en) | 1976-03-25 |
NL168830B (en) | 1981-12-16 |
JPS5420491B2 (en) | 1979-07-23 |
FR2081508A2 (en) | 1971-12-03 |
NL168830C (en) | 1982-05-17 |
JPS535301B1 (en) | 1978-02-25 |
MY7400072A (en) | 1974-12-31 |
FI54916C (en) | 1979-04-10 |
DE2106418A1 (en) | 1971-08-19 |
CS167911B2 (en) | 1976-05-28 |
BE762728R (en) | 1971-08-10 |
NL7101697A (en) | 1971-08-17 |
YU30671A (en) | 1979-10-31 |
YU34876B (en) | 1980-04-30 |
CH530395A (en) | 1972-11-15 |
ZA71877B (en) | 1971-10-27 |
DK137451C (en) | 1978-07-24 |
YU144578A (en) | 1982-10-31 |
ES388135A2 (en) | 1973-05-01 |
JPS53130656A (en) | 1978-11-14 |
CS167912B2 (en) | 1976-05-28 |
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