申请人:Chugai Seiyaku Kabushiki Kaisha
公开号:US05824811A1
公开(公告)日:1998-10-20
Compounds of the general formula: ##STR1## wherein R.sub.1 represents a C1-10 alkyl group which may be substituted by one or more hydroxyl groups, R.sub.2 represents a hydrogen atom or a hydroxyl group, and R.sub.3 represents a hydrogen atom or a hydroxyl group; their intermediates; as well as synthesis processes of these compounds and intermediates are disclosed. The compounds of this invention, vitamin D derivatives substituted by sulfur atoms at the 22-position have a strong inhibitory effect against proliferation of keratinocytes.
通式为:##STR1## 其中R.sub.1代表一个可被一个或多个羟基取代的C1-10烷基基团,R.sub.2代表氢原子或羟基,R.sub.3代表氢原子或羟基;其中间体;以及这些化合物和中间体的合成过程被揭示。本发明的化合物,维生素D衍生物在22位点被硫原子取代,对角质细胞增殖具有强烈的抑制作用。