申请人:Sandoz, Inc.
公开号:US04320135A1
公开(公告)日:1982-03-16
The compounds are free hydantoin derivatives of the formula: ##STR1## wherein X is a divalent radical consisting of from 2 to 5 linked units; one unit being --O--, and from one to 4 hydrocarbon units, independently, having the structure (a) --CH.sub.2 -- or (b) --C(R).sub.2 -- in which R is alkyl having from 1 to 6 carbon atoms and being free of branching on the .alpha.-carbon atoms; provided that no more than 2 units are of type b; or a pharmaceutically acceptable salt form thereof with a suitable cation; e.g. 7-oxa-1,3-diazaspiro[4.4]nonane-2,4-dione, and are useful as pharmaceuticals.
这些化合物是自由的噻唑烷衍生物,其化学式为:##STR1## 其中X是一个二价基团,由2到5个连接的单元组成;其中一个单元为--O--,另外1-4个碳氢单元独立地具有结构(a)--CH.sub.2--或(b)--C(R).sub.2--,其中R是具有1到6个碳原子的烷基,并且在α-碳原子上没有分支;但不超过2个单元为b型;或其药学上可接受的盐形式,带有适当的阳离子;例如7-氧杂-1,3-二氮杂螺[4.4]壬烷-2,4-二酮,可用作药物。