20-isopropyl-5,9-dimethyl-14,17-dioxopentacyco[10.6.2.0
1,10.0
4,9.0
13,18]icosa-13(18),15,19-triene-5-caboxylic acid 以
1,4-二氧六环 为溶剂,
反应 10.0h,
以97%的产率得到(1R,3R)-2-[2-(3-isopropyl-5,8-dioxo-5,8-dihydronaphthalen-1-yl)ethyl]-1,3-dimethyl-3-vinylcyclohexane-1-carboxylic acid