1-[3-(tert-butyldiphenylsilyloxyethyl)phenyl]-3-(2,4-dichlorophenyl)-7-[4-[2-(diethylamino)ethoxy]anilino]-3,4-dihydropyrimido[4,5-d]pyrimidin-2(1H)-one 、 、
四丁基氟化铵 在
silica gel 、
正己烷 、 3-(2,4-dichlorophenyl)-7-[4-[2-(diethylamino)ethoxy]anilino]-3,4-dihydro-1-[3-(2-hydroxyethyl))phenyl 作用下,
以
四氢呋喃 为溶剂,
反应 1.0h,
以gave 60 mg (42%) 3-(2,4-dichlorophenyl)-7-[4-[2-(diethylamino)ethoxy]anilino]-3,4-dihydro-1-[3-(2-hydroxyethyl))phenyl]pyrimido[4,5-d]pyrimidin-2(1H)-one as a white solid of melting point 110° C.的产率得到(6CI)-嘧啶并[4,5-d]嘧啶-2(1H)-酮