2,4-dichloro-7-(4-(trifluoromethoxy)phenyl)-6,7-dihydro-5H-cyclopenta[d]pyrimidine 、
乙胺 在
crude product 、 silica gel 作用下,
以
甲醇 为溶剂,
反应 1.0h,
以to afford 2-chloro-N-ethyl-7-(4-(trifluoromethoxy)phenyl)-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-amine (190 mg, 0.531 mmol, 93% yield)的产率得到2-chloro-N-ethyl-7-(4-(trifluoromethoxy)phenyl)-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-amine