2-amino-4-(3,5-diacetylphenyl)amino-1,6-dimethylpyrimidinium iodide 、
水合甲醇 、
sodium hydroxide 在
ice 作用下,
以
水 为溶剂,
以to give 14.69 g 2-amino-4-(3,5-diacetylphenyl)imino-1,4-dihydro-1,6-dimethylpyrimidine as yellow crystals, mp 219-220°的产率得到2-amino-4-(3,5-diacetylphenyl)imino-1,4-dihydro-1,6-dimethylpyrimidine