16-脱氢孕烯醇酮乙酸酯 在
tetraphosphorus decasulfide 作用下,
以
苯 为溶剂,
反应 4.0h,
以78%的产率得到[(1R,2S,4R,10S,13S,14R,17S)-6-[[(1R,2S,4R,10S,13S,14R,17S)-17-acetyloxy-8,10,14-trimethyl-6-sulfanylidene-7-oxa-5-thia-6lambda5-phosphapentacyclo[11.8.0.02,10.04,9.014,19]henicosa-8,19-dien-6-yl]sulfanyl]-8,10,14-trimethyl-6-sulfanylidene-7-oxa-5-thia-6lambda5-phosphapentacyclo[11.8.0.02,10.04,9.014,19]henicosa-8,19-dien-17-yl] acetate