primary hydroxy functions of 16alpha-hydroxymethyl-3-methoxy-13alpha-estra-1,3,5(10)-trien-17beta-ol (3a) and 16beta-hydroxymethyl-3-methoxy-13alpha-estra-1,3,5(10)-trien-17alpha-ol (4a) were stereoselectively transformed into good leaving groups. On alkaline methanolysis of the 16-halomethyl or 16-tolylsulfonyloxymethyl derivatives, a new D-seco-13alpha-estrone derivative was obtained in high yield
16α-羟甲基-3-甲氧基-13α-estra-1,3,5(10)-trien-17beta-ol (3a) 和 16β-羟甲基-3-甲氧基-13α-estra-1,3 的主要羟基功能,5(10)-trien-17alpha-ol (4a) 被立体选择性地转化为良好的离去基团。在 16-卤甲基或 16-
甲苯磺酰氧基甲基衍
生物的碱性
甲醇分解中,以高收率获得了一种新的 D-seco-13α-
雌酮衍
生物。