申请人:——
公开号:US04134920A1
公开(公告)日:1979-01-16
14.beta.-Hydroxyandrostanes and processes for the preparation thereof in which the 14.beta.-hydroxy group is fabricated internally by means of a novel cyclization of 8,14-seco-4,6,9(11)-androstatrien-3,14,17-triones is disclosed. The 14.beta.-hydroxyandrostanes are useful as precursors for the synthesis of cardenolides and related products.
本发明涉及14-β-羟基雄烷类化合物及其制备方法,其中14-β-羟基基团通过一种新颖的环化反应内部构建于8,14-去氢-4,6,9(11)-雄烷三烯-3,14,17-三酮中。这些14-β-羟基雄烷类化合物可用作合成强心苷及相关产品的前体。