HRID1415039

反应详情

EQUATION

反应方程式

HRID 1415039 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

Stir dl-13-ethyl-3-methoxy-17α-ethynyl-17-hydroxy-6-methylgona-2,5(10)-diene (3.5 g) in methanol (90 cc) containing hydrochloric acid (60 cc) and water (4.0 ml) under nitrogen for 1 hour. Isolate the crude product, chromatograph on Florex (150 g) and recrystallize from ethyl acetate-hexane to obtain the title compound (0.60 g), m.p. 148°-151°, λmax. CHCl3 2.55 μ, 3.05 μ, 6.01 μ; λmax. EtOH 240 mμ (ε15,100).

WORKUP

后处理

  1. customIsolate the crude product, chromatograph on Florex (150 g)
  2. customrecrystallize from ethyl acetate-hexane