申请人:Fournier Innovation et Synergie
公开号:US04806544A1
公开(公告)日:1989-02-21
The present invention relates to novel asymmetrical esters derived from 1,4-dihydrophyridine-3,5-dicarboxylic acid, of the formula: ##STR1## in which: R.sub.1 represents a C.sub.1 -C.sub.4 alkyl group, R.sub.2 represents a C.sub.1 -C.sub.4 alkyl group, a benzyl group, a benzoyl group or a phenyl group optionally substituted by one or more C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkyl, cyano, nitro, hydroxyl or trifluoromethyl groups or by one or more halogen atoms, and R.sub.3 and R.sub.4, which are identical or different, each represent the hydrogen atom, a nitro group or a chlorine atom, their optical isomers and diastereoisomers and also the corresponding addition salts. These novel esters are useful in therapy, especially as antihypertensives.
本发明涉及一种新的不对称酯类化合物,来源于1,4-二氢吡啶-3,5-二羧酸,化学式为:其中:R1代表一个碳链为C1-C4的烷基基团,R2代表一个碳链为C1-C4的烷基基团、苄基、苯甲酰基或苯基,可以选择地被一个或多个C1-C4的烷氧基、C1-C4的烷基、氰基、硝基、羟基或三氟甲基基团或一个或多个卤素原子取代,而R3和R4,它们相同或不同,分别代表氢原子、硝基或氯原子,它们的光学异构体和二对映异构体以及相应的盐。这些新的酯类化合物在治疗中很有用,特别是作为降压药。