Compounds of formula l:
are described in which R' is a linear or branched alkyl radical containing between 1 and 5 carbon atoms, the alkyl radical being unsubstituted or substituted by an alkoxy group; R2 is an unsubstituted phenyl of phenyl substituted by a nitro group; R3 is hydrogen or a linear or branched alkyl residue containing between 1 and 4 carbon atoms, the alkyl radical being unsubstituted or substituted by at least one alkoxy or fluorine atom or both alkoxy and fluorine atoms; R4 is hydrogen or a linear or branched alkyl containing between 1 and 4 carbon atoms, the alkyl radical being unsubstituted or substituted by alkoxy, carbalkoxy, dialkylamino, 1-aryl or 1-heteroarylpiperazinyl, aryl or a monocyclic 5 or 6 membered heterocycle in which at least one of the heteroatoms is N,O,S such as 1-piperidinyl, 4-morpholinyl or R4 is alkenyl or cyclo(C3-C6)alkyl; and enantiomers, racemates, diastereoisomers and isomers (E) and (Z) and their salts with pharmaceutically acceptable acids.
The novel compounds exhibit calcium-antagonistic activity.
式 l.化合物
所述,其中 R' 为含有 1 至 5 个碳原子的直链或支链烷基,该烷基未被取代或被烷氧基取代;R2 为未被取代的苯基或被硝基取代的苯基;R3 为氢或含有 1 至 4 个碳原子的直链或支链烷基残基,该烷基未被取代或被至少一个烷氧基或
氟原子或同时被烷氧基和
氟原子取代;R4 是氢或含有 1 至 4 个碳原子的直链或支链烷基,该烷基未被取代或被烷氧基、碳烷氧基、二烷基
氨基、1-芳基或 1-异芳基
哌嗪基、芳基或单环 5 或 6 个成员杂环取代,其中至少一个杂原子是 N、O、S,如 1-
哌啶基、4-吗啉基,或 R4 是烯基或环(C3-C6)烷基;以及对映体、外消旋体、非对映异构体和异构体(E)和(Z)及其与药学上可接受的酸的盐。
这些新型化合物具有
钙拮抗活性。