申请人:Yamanouchi Pharmaceutical Co., Ltd.
公开号:US04933472A1
公开(公告)日:1990-06-12
Substituted aminomethylenebis(phosphonic acid) derivatives represented by the general formula: ##STR1## in which R.sup.1, R.sup.2 R.sup.3 and R.sup.4 may be the same or different, each represents a hydrogen atom or a lower alkyl group; "m" is zero or represents an integer from 1 to 4; and a ring "A" represents a cycloalkenyl group having 5 to 8 carbon atoms, a bicycloheptyl group, a bicycloheptenyl group or a saturated heterocyclic group having 4 to 7 carbon atoms and containing an oxygen atom, a sulfur atom, a sulfinyl group (--SO--) or a sulfonyl group (--SO.sub.2 --), or pharmaceutically acceptable salts thereof.
通式表示的氨基亚甲基双(膦酸)衍生物:##STR1##其中R.sup.1、R.sup.2、R.sup.3和R.sup.4可以相同也可以不同,每个代表一个氢原子或一个较低的烷基基团;"m"为零或表示1到4之间的整数;环"A"表示一个具有5到8个碳原子的环烯基基团,一个双环庚基团,一个双环庚烯基团或一个具有4到7个碳原子并含有一个氧原子、硫原子、亚砜基(--SO--)或磺酰基(--SO.sub.2--)的饱和杂环基团,或其药学上可接受的盐。