2-[(4-{[3-chloro-4-(pyridin-2-ylmethoxy)phenyl]amino}quinazolin-5-yl)oxy]-2-methylpropanoic acid 在
N,N-二异丙基乙胺 、 Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
异丁酰胺 为溶剂,
以93%的产率得到4-[3-chloro-4-(pyridin-2-ylmethoxy)phenyl]-6,6-dimethyl-4H-[1,4]oxazepino[5,6,7-de]quinazolin-5(6H)-one