申请人:Recordati S.A., Chemical and Pharmaceutical Company
公开号:US04968832A1
公开(公告)日:1990-11-06
Novel antihypertensive and coronary dilating asymmetric diesters of 1,4-dihydro-2,6-dimethylpyridine-3,5-dicarboxylic acid (or the stereoisomers or pharmaceutically acceptable acid addition salts thereof) have the general formula (I): ##STR1## wherein Ph is phenyl, Ar is 2-nitrophenyl, 3-nitrophenyl, 2,3-dichlorophenyl or benzofurazan-4-yl, A is a straight or branched chain alkylene radical having from 2 to 6 carbon atoms, R is a straight or branched chain alkyl radical having from 1 to 6 carbon atoms, optionally mono-substituted by an alkoxy substituent having from 1 to 6 carbon atoms, R.sub.1 is hydrogen, hydroxy or an alkyl radical having from 1 to 4 carbon atoms, and R.sub.2 is hydrogen or methyl. The subject diesters are facilely prepared from the aldehydes ArCHO and esters of acetoacetic and 3-aminocrotonic acids.
新型抗高血压和扩张冠状动脉不对称二酯类化合物,其结构为1,4-二氢-2,6-二甲基吡啶-3,5-二羧酸(或其立体异构体或药学上可接受的酸盐)的通式(I):##STR1## 其中Ph为苯基,Ar为2-硝基苯基、3-硝基苯基、2,3-二氯苯基或苯并呋喃-4-基,A为直链或支链烷基,其碳数为2至6,R为直链或支链烷基,其碳数为1至6,可以选择性地被1至6个碳原子的烷氧基单取代,R.sub.1为氢、羟基或碳数为1至4的烷基,R.sub.2为氢或甲基。该二酯类化合物可通过ArCHO的醛和乙酰丙酮酸酯和3-氨基巴豆酸酯制备得到。