(2-chloro-ethyl)-methyl-carbamoyl chloride 、
雌二醇 在
sodium hydroxide 、
四丁基硫酸氢铵 作用下,
以
氯仿 为溶剂,
生成 (2-Chloro-ethyl)-methyl-carbamic acid (8R,9S,13S,14S,17S)-17-hydroxy-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-3-yl ester