(R)-1-[2-(tert-Butyl-dimethyl-silanyloxy)-1-methyl-ethyl]-7-chloro-3-(4-ethyl-phenyl)-3,4-dihydro-1H-pyrimido[4,5-d]pyrimidin-2-one 、
4-氟苯胺 在
盐酸 、
Sodium sulfate-III 作用下,
以
异丙醇 、
二氯甲烷 为溶剂,
反应 0.5h,
以to give (R)-1-[2-(tert-butyl-dimethyl-silanyloxy)-1-methyl-ethyl]-3-(4-ethyl-phenyl)-7-(4-fluoro-phenylamino)-3,4-dihydro-1H-pyrimido[4,5-d]pyrimidin-2-one as a pale yellow solid的产率得到(R)-1-[2-(tert-Butyl-dimethyl-silanyloxy)-1-methyl-ethyl]-3-(4-ethyl-phenyl)-7-(4-fluoro-phenylamino)-3,4-dihydro-1H-pyrimido[4,5-d]pyrimidin-2-one