2,4-dichloro-8-(4-chlorophenyl)-7,8-dihydro-5H-pyrano[4,3-d]pyrimidine 、
盐酸甲胺 以to give 2-chloro-8-(4-chlorophenyl)-N-methyl-7,8-dihydro-5H-pyrano[4,3-d]pyrimidin-4-amine (150 mg, 0.484 mmol, 30.5% yield)的产率得到2-chloro-8-(4-chlorophenyl)-N-methyl-7,8-dihydro-5H-pyrano[4,3-d]pyrimidin-4-amine