US Patent No: 5,364,872

Number of patents in Portfolio can not be more than 2000

Dihydropyridine-3,5-dicarboxylic acid ester derivatives

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Abstract

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The diastereoisomer A of a dihydropyridine-3,5-dicarboxylic acid ester derivative is provided as well as its pharmaceutically acceptable acid addition salts. The invention further discloses a process for producing the compounds and their use as medicaments in imparting vasodilating activity.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
YAMANOUCHI PHARMACEUTICAL CO., LTD.TOKYO198

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Arima, Hideki Tokyo, JP 6 29
Isomura, Yasuo Tokyo, JP 29 276
Kojima, Tadao Saitama, JP 14 55
Murakami, Yukiyasu Saitama, JP 10 25
Okada, Minoru Tsukuba, JP 137 882
Takanobu, Kiyoshi Saitama, JP 3 6
Takenaka, Toichi Tokyo, JP 15 107
Tamazawa, Kazuharu Saitama, JP 4 6

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Bayer Aktiengesellschaft (2)
4,380,547 Dihydropyridine compounds which are substituted in the 4-position by imidazolyl or thiazolyl and their medicinal use 18 1981
4,510,310 1,4-Dihydro-2,6-dimethyl-4-(2'-chlorophenyl)-3,5-dicarboxylic acid,methyl or ethyl,trifluoroethyl ester 24 1982
 
Malesci Istituto Farmacobiologico S.p.A. (1)
4,578,467 Process for the preparation of 1-pyridyl-alkyl-4-aryl piperazines which are useful as antihypertensive compounds, their separation into the respective optical antipodes, and the stereoisomeric compounds so obtained 8 1984
 
YAMANOUCHI PHARMACEUTICAL CO., LTD. (1)
4,220,649 1,4-Dihydropyridine-3,5-dicarboxylic acid ester derivatives 8 1979

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
PFIZER INC. (2)
5,750,707 Separation of the enantiomers of amlodipine via their diastereomeric tartrates 12 1996
6,046,338 Separation of the enantiomers of amlodipine via their diastereomeric tartrates 10 1998
 
ASTELLAS PHARMA INC. (1)
5,463,064 Dihydropyridine-3,5-dicarboxylic acid ester derivatives 2 1994
 
SAMSUNG FINE CHEMICALS CO., LTD. (1)
6,566,525 Preparation of N-substituted-hydroxycycloalkylamine derivatives 3 2001