2-[4-(methyloxycarbonylmethylamino)-piperidino]-8-(N-benzyl-N-methyl-amino)-4-morpholino-pyrimido[5,4-d]pyrimidine 在
sodium hydroxide 作用下,
以
甲醇 为溶剂,
生成
2-[4-(Carboxymethylamino)-piperidino]-8-(N-benzyl-N-methyl-amino)-4-morpholino-pyrimido [5,4-d]pyrimidine