(4aS,10aR)-2-Hydroxy-7-isopropyl-4a-methyl-1-methylene-1,2,3,4,4a,9,10,10a-octahydro-phenanthrene-2-carboxylic acid methyl ester 在
氯化亚砜 作用下,
以
乙醚 为溶剂,
以71%的产率得到(4aS,10aR)-1-Chloromethyl-7-isopropyl-4a-methyl-3,4,4a,9,10,10a-hexahydro-phenanthrene-2-carboxylic acid methyl ester