申请人:Ciba-Geigy Corporation
公开号:US04883877A1
公开(公告)日:1989-11-28
Compounds of the formula I ##STR1## in which R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are, for example, H, alkyl, cycloalkyl, aryl or alkaryl are suitable as an ammonium salt-forming component for acid pharmaceutical active ingredients, and in particular for the preparation of azabicyclo[3.1.1.]heptane-substituted alkanediphosphonic acids for the treatment of diseases which can be attributed to disturbances in calcium metabolism.
公式I的化合物 ##STR1## 其中R.sup.1、R.sup.2、R.sup.3和R.sup.4可以是H、烷基、环烷基、芳基或烷基芳基,适用于作为酸性药物活性成分的铵盐形成组分,特别是用于制备用于治疗可以归因于钙代谢紊乱的疾病的含氮杂二环[3.1.1.]庚烷取代的烷基二膦酸。