2-[2-Aminoacetylamino]-5-thiazoleacetic acid ethyl ester 、 2-[[4-[5-{2-Ethyl-8-methyl-5H-dibenzo[a,d]cyclohepten-5-yl}-3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinyl]pyrimidin-2-yl amino]acetylamino]-4-thiazoleacetic acid 在
乙酸乙酯 、
甲苯 作用下,
生成 (+/-)-2-[2-[[4-[5-{2-Ethyl-8-methyl-5H-dibenzo[a,d]cyclohepten-5-yl}-3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinyl]pyrimidin-2-yl]amino]acetylamino]-5-thiazoleacetic acid, ethyl ester