申请人:Societe de Recherches Industries (S.O.R.I.)
公开号:US04900833A1
公开(公告)日:1990-02-13
The present invention relates to novel asymmetrical esters derived from 1,4-dihydropyridine-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.
本发明涉及一种新型不对称酯,其源自于1,4-二氢吡啶-3,5-二羧酸,其化学式为: ##STR1## 其中:R.sub.1代表C.sub.1-C.sub.4烷基,R.sub.2代表C.sub.1-C.sub.4烷基、苯甲基、苯甲酰基或苯基,可选地被一个或多个C.sub.1-C.sub.4烷氧基、C.sub.1-C.sub.4烷基、氰基、硝基、羟基或三氟甲基基团或一个或多个卤原子取代,而R.sub.3和R.sub.4相同或不同,分别代表氢原子、硝基或氯原子,其光学异构体和对映异构体以及相应的加合物盐。这些新型酯在治疗中有用,特别是作为降压药。