5-(5H-Dibenzo[a,d]cyclohepten-5-yl)-2,4(1H,3H)-pyrimidinedione 、 3-[[5-{5H-dibenzo[a,d]cyclohepten-5-yl}-3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinyl]methyl]-5-[2-methoxyethoxymethyl]benzoic acid, ethyl ester 以
甲苯 为溶剂,
生成
3-[[5-{5H-Dibenzo[a,d]cyclohepten-5-yl}-3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinyl]methyl]benzoic acid, [1,1-dimethylethyl] ester