申请人:NIPPON KAYAKU KABUSHIKI KAISHA
公开号:EP0261656A1
公开(公告)日:1988-03-30
A process for producing a steroid compound which is useful as an intermediate for synthesizing plant growth regulators, brassinosteroids, and is represented by the general formula (4):
wherein R₁ is
in which R₂ is a methyl or ethyl, and * indicates the binding site of R₁ to a steroid nucleus, or
general formula (5):
where in R₁ is as defined above.
According to the process disclosed herein, an intermediate for a brassinolide, epibrassinolide, homobrassinolide or derivatives thereof can be produced highly advantageously in the industries.
一种类固醇化合物的生产工艺,该化合物可用作合成植物生长调节剂--铜生长激素的中间体,其通式为(4):
其中 R₁ 是
其中 R₂ 是甲基或乙基,* 表示 R₁ 与类固醇核的结合位点,或
通式 (5):
其中 R₁ 如上定义。
根据本文所公开的工艺,可以在工业中生产出非常有利的黄铜内酯、表黄铜内酯、同黄铜内酯或其衍生物的中间体。