1-(5-Tert-butylisoxazol-3-yl)-3-{3-[6-methoxy-7-(piperidin-4-yloxy)quinazolin-4-yloxy]phenyl}urea 、
2,2-二氟乙基三氟甲磺酸酯 、
N,N-二异丙基乙胺 在
silica gel 、
ethyl acetate n-hexane 作用下,
以
二氯甲烷 为溶剂,
反应 4.0h,
以to afford 1-(5-tert-butylisoxazol-3-yl)-3-(3-{7-[1-(2,2-difluoroethyl)piperidin-4-yloxy]-6-methoxyquinazolin-4-yloxy}phenyl)urea as a solid (0.011 g, 4%)的产率得到1-(5-tert-butylisoxazol-3-yl)-3-(3-{7-[1-(2,2-difluoroethyl)piperidin-4-yloxy]-6-methoxyquinazolin-4-yloxy}phenyl)urea