Dihydropyridines with an antagonistic activity to calcium, process for their preparation, and pharmaceutical compositions containing them
申请人:Pierrel S.p.A.
公开号:EP0097821A2
公开(公告)日:1984-01-11
Basic esters of 1,4-dihydropyridine-3,5-dicarboxylic acid of formula (I)
are described, in which R' is a linear or branched alkyl radical containing 1-5 carbon atoms which is unsubstituted or substituted by an alkoxy group; R2 is a phenyl or a nitrophenyl radical; R3 is phenyl, phenyl substituted by one to three radicals selected from (C1-4)alkyl, (C1-4)alkoxy, fluoro, chloro, bromo, nitro, cyano, carb(C1-4)alkoxy, trifluoromethyl, hydroxy, amino, mono- or di-alkylamino, mono- or di-acylamino, mercapto, S(O)n-alkyl with n = 0,1 or 2, (C1-C5)acyl, carbamoyl, ureido or R3 is a 5 or 6 membered heteroaryl monocyclic radical which contains one or more heteroatoms which are N, 0 or S such as unsubstituted pyridyl, pirazinyl, pyrimidyl, furyl, imidazolyl, thienyl, thiazolyl, 1,2,3-triazolyl, 1,2,4-triazolyl or mono-, di- or tri-substituted with alkyl, alkoxy, halogen or trifluoromethyl; X is a linear or branched alkylen radical containing between 2 and 5 carbon atems which is unsubstituted or substituted by an alkoxy group and their racemates, enantiomers and diastereoisomers and addition salts thereof with a pharmaceutically acceptable acid. The novel compounds exhibit calcium antagonistic activity.
描述了式(I)的 1,4-二氢吡啶-3,5-二羧酸碱式酯。
其中 R' 是含有 1-5 个碳原子的直链或支链烷基,未被取代或被烷氧基取代;R2 是苯基或硝基苯基;R3 是苯基、被一至三个基团取代的苯基,这些基团选自(C1-4)烷基、(C1-4)烷氧基、氟基、氯基、溴基、硝基、氰基、碳(C1-4)烷氧基、三氟甲基、羟基、氨基、单或双烷基氨基、单或双酰基氨基、巯基、S(O)n-烷基(n = 0、1 或 2)、(C1-C5)酰基、氨基甲酰基、脲基或 R3 是脲基、脲基或 R3 是含有一个或多个杂原子(N、0 或 S)的 5 或 6 位杂芳基单环基,如未取代的吡啶基、吡嗪基、嘧啶基、呋喃基、咪唑基、噻吩基、噻唑基、1,2,3-三唑基、1,2,4-三唑基,或由烷基、烷氧基、卤素或三氟甲基单取代、二取代或三取代的烷基;X 是含有 2 至 5 个碳原子的直链或支链烯基,未被烷氧基取代或被烷氧基取代,以及它们的外消旋体、对映体和非对映异构体及其与药学上可接受的酸的加成盐。这些新型化合物具有钙拮抗活性。