2,4-dichloro-7-(3,5-difluorophenyl)-6,7-dihydro-5H-cyclopenta[d]pyrimidine 、
甲胺 在
crude product 、 silica gel 作用下,
以
甲醇 为溶剂,
反应 1.0h,
以to give 2-chloro-7-(3,5-difluorophenyl)-N-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-amine (60 mg, 0.203 mmol, 30.5% yield)的产率得到2-chloro-7-(3,5-difluorophenyl)-N-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-amine