Ethyl 3-benzamido-4-formyl-2,6-dimethylbenzoate 、 、
氨 在
silica gel 、
hexane-diethyl ether 作用下,
以to give 2-phenyl-7-ethoxycarbonyl-6,8-dimethylquinazoline having a melting point of 85° to 86° C. in a yield of 35% by weight的产率得到2-phenyl-7-ethoxycarbonyl-6,8-dimethylquinazoline