申请人:Schering Aktiengesellschaft
公开号:US05665716A1
公开(公告)日:1997-09-09
New 24-homo vitamin D derivatives of formula I ##STR1## are described, in which R.sup.1 means a hydrogen atom, a hydroxy, an alkanoyloxy group with 1 to 8 carbon atoms or an aralkanoyloxy group with up to 8 carbon atoms, R.sup.2 and R.sup.3, independently of one another, mean a linear or branched alkyl group with 1 to 4 carbon atoms, a trifluoromethyl group or together mean a saturated carbocyclic ring with 3 to 9 carbon atoms formed with carbon atom 25, R.sup.4 and R.sup.5, independently of one another, mean a hydrogen atom, an alkanoyl group with 1 to 8 carbon atoms or an aralkanoyl group with up to 8 carbon atoms, and A and B each mean a hydrogen or together a second bond, and n stands for 1, 2, 3,4 or 5.
描述了一种公式I的新24-羟基维生素D衍生物,其中R.sup.1表示氢原子,羟基,具有1至8个碳原子的烷酰氧基团或具有多达8个碳原子的芳基烷酰氧基团,R.sup.2和R.sup.3彼此独立地表示具有1至4个碳原子的直链或支链烷基团,三氟甲基基团或者一起表示与碳原子25形成的具有3至9个碳原子的饱和碳环,R.sup.4和R.sup.5彼此独立地表示氢原子,具有1至8个碳原子的烷酰基团或具有多达8个碳原子的芳基烷酰基团,A和B各自表示氢或一起表示第二键,n代表1、2、3、4或5。