阿法替尼杂质  Afatinib impurity

AFN-A  (S)-N4-(3-chloro-4-fluorophenyl)-7((tetrahydrofuran3-yl) oxy)quinazoline-4,6-diamine  314771-76-1

AFN-C  (R,E)-N-(4-((3-chloro-4fluorophenyl)amino)-7-((tetrahydrofuran-3-yl)oxy)quinazolin-6-yl)-4(dimethylamino) but-2-enamide  945553-91-3

AFN-D  (S)-N-(4-((3-chloro-4fluorophenyl)amino)-7-((tetrah ydrofuran-3-yl)oxy)quinazolin-6-yl)but3-enamide  

AFN-G  (S,E)-N-(4-((3,4-dichlorophenyl)amino)7-((tetrahydrof uran-3-yl)oxy)quinazolin-6-yl)-4(dimethylamino)but-2enamide  

AFN-H  (S,E)-N-(4-((3,4-difluorophenyl)amino)7-((tetrahydrofuran-3-yl)oxy)quinazolin-6-yl)-4(dimethylamino)but-2 -enamide