申请人:Takeda Chemical Industries, Ltd.
公开号:US05376647A1
公开(公告)日:1994-12-27
A bisphosphonic acid derivative of the general formula (I): ##STR1## wherein A is an optionally substituted cyclic group; R.sup.1 is hydrogen atom or a lower alkanoyl group; R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are the same or different and are hydrogen atom or a lower alkyl group; m is 0, 1 or 2; and n is an integer from 2 to 10, or a salt thereof is disclosed. A process for its production and a bone resorption inhibitor containing the compound of the general formula (I) or a salt thereof are also disclosed.
通式(I)的双膦酸衍生物:##STR1##其中A是可选择取代的环状基团;R.sup.1是氢原子或较低的烷酰基团;R.sup.2、R.sup.3、R.sup.4和R.sup.5相同或不同,是氢原子或较低的烷基基团;m为0、1或2;n为2到10的整数,或其盐。还公开了其生产方法以及含有通式(I)的化合物或其盐的骨吸收抑制剂。