HRID1658709
反应详情
EQUATION
反应方程式
REACTANTS
反应物
PRODUCTS
生成物
AUXILIARIES
试剂、催化剂与溶剂
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
- filtrationThe thus-precipitated product is vacuum-filtered