申请人:Takeda Chemical Industries, Ltd.
公开号:US05273974A1
公开(公告)日:1993-12-28
A condensed heterocyclic derivative of the formula (I): ##STR1## wherein X is an oxygen atom, a sulfur atom or R.sup.1 --N< wherein R.sup.1 is a hydrogen atom, a hydrocarbon group which may be substituted or an acyl group which may be substituted; R.sup.2 is a hydrogen atom or a hydrocarbon group which may be substituted; ring A is a benzene ring which may be substituted, k is a whole number of 0 to 3; m is a whole number of 1 to 8; and n is a whole number of 1 to 6, or a pharmaceutically acceptable salt thereof exhibiting high colinesterase inhibitory activity, and a method for producing the same.
化学式(I)的一种缩合杂环衍生物:##STR1##其中X是氧原子、硫原子或R.sup.1--N<,其中R.sup.1是氢原子、可能被取代的碳氢基团或可能被取代的酰基团;R.sup.2是氢原子或可能被取代的碳氢基团;环A是可能被取代的苯环,k是0到3的整数;m是1到8的整数;n是1到6的整数,或其药学上可接受的盐,具有高胆碱酯酶抑制活性,并提供其制备方法。