6-amino-4-(3'-chloro-4'-fluoroanilino)quinazoline hydrochloride 、
1,1,2-三甲氧基乙烷 以to give 4-(3'-chloro-4'-fluoroanilino)-6-(2-methoxyethylamino)quinazoline in 8% yield, m.p. 152-154° C.的产率得到4-(3'-chloro-4'-fluoroanilino)-6-(2-methoxyethylamino)quinazoline