3β-Hydroxyandrost-5-en-17-one (1) was converted into 17β-(N-methylamino)androst-5-en-3β-ol (4). In the corresponding N-benzamide 5, structural features characteristic of brassinolide were produced in a standard way, i.e. via 3α,5α-cyclo derivatives 7 and 8, ∆2-olefin 9 and 2α,3α-diol 10. Baeyer-Villiger oxidation yielded two products: 2α,3α-dihydroxy-17β-N-(methylbenzamido)-7-oxa-7a-homo-5α-androstan-6-one (11) and 2α,3α-dihydroxy-17β-(N-methylbenzamido)-6-oxa-7a-homo-5α-androstan-7-one (12).
3β-羟基
雄甾-5-烯-17-酮(
1)被转化为17β-(
N-甲基
氨基)雄甾-5-烯-3β-醇(
4)。在相应的
N-苯甲酰胺
5中,通过标准方法产生了
铜绿菊酯的结构特征,即通过3α,5α-环衍
生物7和
8,∆
2-烯烃
9和2α,3α
-二醇10。Baeyer-Villiger氧化产生了两种产物:2α,3α-二羟基-17β-
N-(甲基苯甲酰胺)-7-氧杂-7a-同型-5α-雄甾酮-6-酮(
11)和2α,3α-二羟基-17β-(
N-甲基苯甲酰胺)-6-氧杂-7a-同型-5α-雄甾酮-7-酮(
12)。