申请人:Schering Aktiengesellschaft
公开号:US05532228A1
公开(公告)日:1996-07-02
The invention discloses side-chain homologous vitamin D derivatives of formula I ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, B, and D have the meanings defined in the specification and either (1) A is a direct bond between carbon atoms 20 and 22 and X is an oxy alkylene radical, --(CH.sub.2).sub.n O-- where n is 1 to 3; (2) A is a methylene bridge, --CH.sub.2 --, between carbon atoms 20 and 22 and X is either an alkylene radical, --(CH.sub.2).sub.n -- or an oxy alkylene radical, --(CH.sub.2).sub.n O--, where n is 1 to 3; or (3) if A is a direct bond and B and D together form a second bond, then X(R.sup.5) (R.sup.6) is ##STR2## The compounds possess proliferation-inhibiting and cell-differentiating activity.
该发明公开了式I的侧链同系物维生素D衍生物,其中R1、R2、R3、R4、R5、R6、B和D在规范中定义,并且要么(1)A是碳原子20和22之间的直接键,X是氧烷基,--(CH2)nO--,其中n为1至3;(2)A是甲基桥,--CH2--,在碳原子20和22之间,X是烷基,--(CH2)n--或氧烷基,--(CH2)nO--,其中n为1至3;或(3)如果A是直接键,且B和D一起形成第二个键,则X(R5)(R6)为##STR2## 该化合物具有抑制增殖和细胞分化活性。