methyl 5,17-dimethyl-4,6-dioxo-8-phenyl-5,16,17-triazapentacyclo[7.6.1.12,8.03,7.012,16]heptadeca-1(15),9,11,13-tetraene-11-carboxylate 在
对甲苯磺酸 作用下,
以
溶剂黄146 为溶剂,
以82%的产率得到methyl 5-methyl-4,6-dioxo-8-phenyl-5,16-diazatetracyclo[7.6.1.03,7.012,16]hexadeca-1,3(7),8,10,12,14-hexaene-11-carboxylate