申请人:Yamanouchi Pharmaceutical Co., Ltd.
公开号:US04990503A1
公开(公告)日:1991-02-05
A novel heterocyclic bisphosphonic acid derivatives represented by the following general formula (I): ##STR1## in which, .circle.Het means one of following (A) and (B): ##STR2## wherein a dotted line in (A) means that two adjacent atoms are bonded by a single bond or a double bond, ##STR3## wherein R.sup.6 and R.sup.7 may be the same or different, each represents a hydrogen atom, a lower alkyl group, a halogen atom or a hydroxyl group, R.sup.1 represents a hydrogen atom or a hydroxyl group, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 may be the same or different, each represents a hydrogen atom or a lower alkyl group, "n" is 0 or 1, provided that "n" is 1 when the ring .circle.Het means (A), and "R.sup.1 " is a hydroxyl group when the ring .circle.Het means (B), or pharmaceutically acceptable salts thereof and bone resorption inhibitors containing the compound as an active ingredient.
以下是一种新型的杂环双膦酸衍生物,其通式表示为(I):##STR1##
其中,.circle.Het代表以下(A)和(B)之一:##STR2##
其中,(A)中的虚线表示两个相邻原子通过单键或双键结合,R.sup.6和R.sup.7可以相同或不同,每个代表氢原子、低碳基、卤原子或羟基,R.sup.1代表氢原子或羟基,R.sup.2、R.sup.3、R.sup.4和R.sup.5可以相同或不同,每个代表氢原子或低碳基,“n”为0或1,当环.circle.Het表示(A)时,“n”为1,当环.circle.Het表示(B)时,“R.sup.1”为羟基,或其药学上可接受的盐和以该化合物为活性成分的骨吸收抑制剂。