申请人:Leo Pharmaceutical Products Ltd.
公开号:US05130304A1
公开(公告)日:1992-07-14
The present invention relates to compounds of formula in which R.sub.1 -R.sub.8 can be the same or different and stand for hydrogen or a straight or branched aliphatic C.sub.1 -C.sub.10 hydrocarbon radical. In addition, R.sub.3 when taken together with either R.sub.1 or R.sub.5 can form a saturated aliphatic 5-, 6-or 7-membered ring, which may be substituted with one or more C.sub.1 -C.sub.4 -alkyl radicals. The present compounds are effective e.g. in drugs influencing calcium metabolism.
本发明涉及以下化合物的公式,其中R.sub.1 -R.sub.8可以相同也可以不同,代表氢或直链或支链脂肪族C.sub.1 -C.sub.10烃基。此外,当R.sub.3与R.sub.1或R.sub.5中的任一者结合时,可以形成饱和脂肪族5、6或7成员环,该环可能被一个或多个C.sub.1 -C.sub.4烷基基团取代。这些化合物在影响钙代谢的药物中具有有效性。