HRID1658709

反应详情

EQUATION

反应方程式

HRID 1658709 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

460 mg. of 17α-ethinyl-6α,7α-epoxy-11β-fluoro-17β-hydroxy-4-androsten-3-one is introduced at room temperature into 25 ml. of glacial acetic acid saturated with gaseous hydrogen chloride. After 20 hours, the solution is poured into ice/water. The thus-precipitated product is vacuum-filtered and worked up as indicated in Example 17. After chromatography of the crude product on silica gel with acetone/hexane, 215 mg. of 17α-ethinyl-6-chloro-11β-fluoro-17β-hydroxy-4,6-androstadien-3-one is obtained as a foamy product. UV: ε282 = 20,600 (methanol).

WORKUP

后处理

  1. filtrationThe thus-precipitated product is vacuum-filtered