1-(5-tert-butylisoxazol-3-yl)-3-[3-(6,7-diethoxyquinazolin-4-yloxy)phenyl]urea 、 hydrochloric acid diethyl ether 以
二氯甲烷 、
甲醇 为溶剂,
以to afford 1-(5-tert-butylisoxazol-3-yl)-3-[3-(6,7-diethoxyquinazolin-4-yloxy)phenyl]urea hydrochloride as a solid (0.053 g, 20%)的产率得到1-(5-tert-butylisoxazol-3-yl)-3-[3-(6,7-diethoxyquinazolin-4-yloxy)phenyl]urea hydrochloride