申请人:Hoffmann-La Roche Inc.
公开号:US04026882A1
公开(公告)日:1977-05-31
Syntheses of 3,24R,25- and 3,24S,25-trihydroxy-5,7-cholestadiene 24,25-ketals and alkanoyl derivatives thereof, intermediates in the preparation of the biologically important metabolite and derivative, respectively, of vitamin D.sub.3, are described.
本文描述了3,24R,25-和3,24S,25-三羟基-5,7-胆甾二烯24,25-缩醛和脂酰衍生物的合成,这些是在制备生物学上重要的维生素D.sub.3的代谢产物和衍生物的中间体。