甲基锂 、
2-acetoxy-5,10-isopropylidenedioxy-3-(4'-methoxyphenylthio)-9-oxo-1,4,4a(R*),9,9a(S*),10(R*)-hexahydroanthracene 以
乙二醇二甲醚 、
乙醚 为溶剂,
反应 1.5h,
以39%的产率得到9-hydroxy-5,10-isopropylidenedioxy-3-(4'-methoxyphenylthio)-9-methyl-2-oxo-1,2,3(S*),4,4a(R*),9(S*),9a(S*),10(R*)-octahydroanthracene