3beta,17beta-Dibenzoyloxy-7alpha-chloro-5,6beta-epoxy-15beta,16beta-methylene-5beta-androstane 、
异丙醇 、 Acetone diisopropyl ether 在
锌 silica gel 作用下,
以
溶剂黄146 为溶剂,
以Chromatography on silica gel yields 8.8 g of 3β,17β-dibenzoyloxy-15β,16β-methylene-5β-androst-6-en-5-ol, mp 223°-225° C. (acetone-diisopropyl ether)的产率得到3β,17β-dibenzoyloxy-15β,16β-methylene-5β-androst-6-en-5-ol