(3Z,5E,11Z)-11,12-Dimethyl-cyclotetradeca-3,5,11-triene-1,1,8,8-tetracarboxylic acid tetramethyl ester 以
甲苯 为溶剂,
反应 3.5h,
以88%的产率得到(4aS,4bR,8aS,10aS)-4a,4b-Dimethyl-1,3,4,4a,4b,5,6,8,8a,10a-decahydro-phenanthrene-2,2,7,7-tetracarboxylic acid tetramethyl ester