dimethyl (3Z,5E,7S,8S,11Z)-8-methoxy-3,7,11-trimethyl-13-oxocyclotetradeca-3,5,11-triene-1,1-dicarboxylate 以
甲苯 为溶剂,
反应 20.0h,
以90%的产率得到dimethyl (4aR,4bS,7S,8S,8aS,10aR)-7-methoxy-4b,8,10a-trimethyl-4-oxo-1,3,4a,5,6,7,8,8a-octahydrophenanthrene-2,2-dicarboxylate