1α-(tert-butyldimethylsilyloxy)-3β-hydroxy-20(S)-phenoxycarbonylthiopregna-5.7,16-triene 、 6-Bromo-3-ethyl-4-hexyn-3-ol 、
四氢呋喃 、
氢氧化钾 在
ethyl acetate dichloromethane 作用下,
以
甲醇 为溶剂,
以developed twice) to give the title compound as a colorless oil (38.4 mg, 63%)的产率得到1α-(tert-butyldimethylsilyloxy)-3β-hydroxy-20(S)-(4-ethyl-4-hydroxy-2-hexynylthio)pregna-5,7,16-triene