申请人:Kaken Pharmaceutical Co., Ltd.
公开号:EP0498424A1
公开(公告)日:1992-08-12
A bisphosphonic acid derivative of the formula (I) or a pharmaceutically acceptable salt thereof:
wherein A is
wherein each of R¹ and R², which may be the same or different, is a hydrogen atom, a halogen atom, a C₁₋₆ alkyl group or a single bond, each of j, k and ℓ is 0 or a positive integer, provided that (j+k+ℓ) is from 2 to 6, each of R³ and R⁴, which may be the same or different, is (i) a hydrogen atom, (ii) a C₁₋₆ alkyl group, a C₂₋₆ alkenyl group, a C₂₋₆ alkynyl group, a C₁₋₆ alkyl-carbonyl group, a C₂₋₆ alkenyl-carbonyl group, a C₂₋₆ alkynyl-carbonyl group (these groups may be substituted by at least one member selected from the group consisting of a substituted amino group, a halogen atom and a carboxyl group), or (iii) a halogen atom, each of R⁵ and R⁶, which may be the same or different, is a hydrogen atom, a hydroxyl group, a halogen atom, a cyano group, a carbamoyl group, an aralkyl group, a substituted or unsubstituted phenyl group, a substituted or unsubstituted amino group, a C₁₋₆ alkyl group, a C₂₋₆ alkenyl group, a C₂₋₆ alkynyl group or a heterocyclic group having a nitrogen atom as the hetero atom, provided that when either one of R⁵ and R⁶ is a hydrogen atom, the other is other than a hydrogen atom or a C₁₋₆ alkyl group;
each of m and n is 0 or a positive integer, provided that (m+n) is from 2 to 5; and
R is a hydrogen atom, a C₁₋₈ alkyl group or a C₇₋₁₅ aralkyl group.
式 (I) 的双膦酸衍生物或其药学上可接受的盐:
其中 A 是
其中 R¹ 和 R² (可以相同或不同)分别为氢原子、卤素原子、C₁₋₆ 烷基或单键,j、k 和 ℓ 分别为 0 或正整数,条件是 (j+k+ℓ) 为 2 至 6,R³ 和 R⁴ (可以相同或不同)分别为 (i) 氢原子、(ii) C₁₋₆ 烷基、C₂₋₆ 烯基、C₂₋₆ 炔基、C₁₋₆ 烷基-羰基、C₂₋₆ 烯基-羰基、C₂₋₆炔基-羰基(这些基团可被至少一个选自取代氨基的成员取代、R⁵和 R⁶可以相同或不同,各自为氢原子、羟基、卤素原子、氰基、氨基甲酰基、芳烷基、取代或未取代的苯基、取代或未取代的氨基、C₁₋₆烷基、C₂₋₆烯基、C₂₋₆炔基或以氮原子作为杂原子的杂环基团、但当 R⁵ 和 R⁶ 中的一个是氢原子时,另一个不是氢原子或 C₁₋₆ 烷基;
m 和 n 各为 0 或正整数,条件是 (m+n) 为 2 至 5;以及
R 是氢原子、C₁₋₈ 烷基或 C₇₋₁₅ 芳烷基。