methyl 2-(8-chloro-4-quinolinylamino)-5-fluorobenzoate 、
N,N-二甲基乙醇胺 以to obtain 6.8 g of 2-dimethylamino-ethyl 2-(8-chloro-4-quinolinylamino)-5-fluoro-benzoate melting at 121°-122° C的产率得到2-(8-Chloro-quinolin-4-ylamino)-5-fluoro-benzoic acid 2-dimethylamino-ethyl ester