申请人:YAMANOUCHI PHARMACEUTICAL CO. LTD.
公开号:EP0354806A2
公开(公告)日:1990-02-14
Novel heterocyclic bisphosphonic acid derivatives represented by the following general formula (I):
in which
means one of following (A) and (B):
wherein a dotted line in (A) means that two adjacent atoms are bonded by a single bond or a double bond,
wherein R6 and R7 may be the same or different, each represents a hydrogen atom, a lower alkyl group, a halogen atoms or a hydroxyl group,
R1 represents a hydrogen atom or a hydroxyl group, R2,R3,R4 and R5 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 means (A), and "Rl" is a hydroxyl group when the ring means (B), pharmaceutically acceptable salts thereof and bone resorption inhibitors containing the compounds as active ingredient.
由以下通式(I)代表的新型杂环双膦酸衍生物:
其中
指下列(A)和(B)之一:
其中(A)中的虚线表示两个相邻原子通过单键或双键结合、
其中 R6 和 R7 可以相同或不同,各自代表氢原子、低级烷基、卤素原子或羟基、
R1 代表氢原子或羟基,R2、R3、R4 和 R5 可以相同或不同,各自代表氢原子或低级烷基、
n "为 0 或 1、
但当环表示(A)时,"n "为 1;当环表示(B)时,"Rl "为羟基。