5-methoxy-1,3-diphenyl-2H-cyclopenta[l]phenanthren-2-one 、 bicyclo[2.2.1]hept-5-ene-2-endo,3-exo-dicarboxylic acid di[(acetyloxy)methyl] ester 以
氯苯 为溶剂,
反应 4.0h,
以58%的产率得到9,9a,10,11,12,13,13a,14-octahydro-2-methoxy-15-oxo-9,14-diphenyl-9,14:10,13-dimethanobenzo[b]triphenylene-11,12-dicarboxylic acid bis[(acetyloxy)methyl] ester