tert-butyl 4-(5-bromo-2-(2-chloro-4-morpholin-4-yl-phenylamino)quinazolin-8-yloxy)-piperidine-1-carboxylate 以
trifluoracetic acid-dichloromethane 为溶剂,
反应 0.5h,
以to provide 5-bromo-N-(3-chloro-4-morpholinophenyl)-8-(piperidine-4-yloxy) quinazolin-2-amine in 50% yield的产率得到5-bromo-N-(3-chloro-4-morpholinophenyl)-8-(piperidin-4-yloxy)quinazolin-2-amine