申请人:Kaken Pharmaceutical Co., Ltd.
公开号:US05158963A1
公开(公告)日:1992-10-27
A 1,4-dihydropyridine derivative having the formula (I): ##STR1## wherein X is oxygen atom or nitrogen atom; when X is oxygen atom, R.sup.1 is hydrogen atom, a lower alkyl group, a lower cycloalkyl group, a lower alkenyl group or magnesium atom, when X is nitrogen atom, X-R.sup.1 group is NH.sub.2, NHR.sup.1', NR.sup.1' R.sup.1" or ##STR2## in which R.sup.1' is a lower alkyl group or a lower alkoxyalkyl group, R.sup.1" is a lower alkyl group and n is an integer of 2 to 6; R.sup.2 is a lower alkyl group, a lower cycloalkyl group or a lower alkoxyalkyl group and R.sup.3 is a lower alkyl group, formyl group, dimethoxymethyl group, cyano group or amino group, when X is oxygen atom and R.sup.1 is hydrogen atom or magnesium atom, R.sup.3 is methyl group, when X is nitrogen atom, R.sup.3 is methyl group, or a pharmaceutically acceptable salt thereof, some processes for preparing the same and a pharmaceutical composition containing the same. According to the present invention, a superior cerebral function improver can be provided.
一种具有以下式(I)的1,4-二氢吡啶衍生物:其中X是氧原子或氮原子;当X是氧原子时,R.sup.1是氢原子、较低的烷基基团、较低的环烷基基团、较低的烯基基团或镁原子,当X是氮原子时,X-R.sup.1基团是NH.sub.2、NHR.sup.1'、NR.sup.1' R.sup.1"或其中R.sup.1'是较低的烷基基团或较低的烷氧基烷基团,R.sup.1"是较低的烷基基团,n是2到6的整数;R.sup.2是较低的烷基基团、较低的环烷基基团或较低的烷氧基烷基团,R.sup.3是较低的烷基基团、甲酰基基团、二甲氧基甲基基团、氰基或氨基,当X是氧原子且R.sup.1是氢原子或镁原子时,R.sup.3是甲基基团,当X是氮原子时,R.sup.3是甲基基团,或其药用可接受盐,以及制备它们的一些方法和含有它们的药物组合物。根据本发明,可以提供一种优越的脑功能改善剂。