英文别名Afatinib Impurity 1; 4-Quinazolinamine, N-(3-chloro-4-fluorophenyl)-6-nitro-7-[[(3S)-tetrahydro-3-furanyl]oxy]-; 7-((S)-tetrahydrofuran-3-yloxy)-4-(3-chloro-4-fluorophenyl)amino-6-nitroquinazoline; N-(3-Chloro-4-fluorophenyl)-6-nitro-7-[[(3S)-tetrahydro-3-furanyl]oxy]-4-quinazolinamine; Afatinib intermediate C; N-(3-chloro-4-fluorophenyl)-6-nitro-7-[(3S)-oxolan-3-yl]oxyquinazolin-4-amine 
