英文别名6-Amino-4-[(3-chloro-4-fluorophenyl)amino]-7-[[(S)-tetrahydro-3-furanyl]oxy]quinazoline; Afatinib-des(4-dimethylamino-2-en-1-oxo)butyl; N4-(3-Chloro-4-fluorophenyl)-7-[[(3S)-tetrahydro-3-furanyl]oxy]-4,6-quinazolinediamine; 4-N-(3-chloro-4-fluorophenyl)-7-[(3S)-oxolan-3-yl]oxyquinazoline-4,6-diamine; N-(3-Chloro-4-fluorophenyl)-7-[(3S)-tetrahydro-3-furanyloxy]-4,6-quinazolinediamine; Afatinib Impurity 2 
