申请人:CHUGAI SEIYAKU KABUSHIKI KAISHA
公开号:EP1174424A1
公开(公告)日:2002-01-23
An object of the present invention is to synthesize a novel vitamin D derivative having a methyl group at the 3-position.
The present invention provides vitamin D derivatives represented by the general formula (1):
wherein X represents -CH2-, -O- or -S-; and R1 represents a saturated or unsaturated aliphatic C1-C15 hydrocarbon group which may be substituted by 1 to 3 hydroxyl groups or protected hydroxyl groups.
本发明的目的是合成一种在3位具有甲基基团的新型维生素D衍生物。本发明提供了由通式(1)表示的维生素D衍生物:其中X表示-CH2-,-O-或-S-;R1表示饱和或不饱和的C1-C15脂肪族烃基,该基团可以被1至3个羟基基团或保护羟基基团取代。