英文别名Desmethyl erlotinib acetate; 2-[4-(3-ethynylanilino)-7-(2-methoxyethoxy)quinazolin-6-yl]oxyethyl acetate; 6-(2-Acetoxy-ethoxy)-4-(3-ethynyl-phenylamino)-7-(2-methoxy-ethoxy)quinazoline; 2-[[4-[(3-ethynylphenyl)amino]-7-(2-methoxyethoxy)-6-quinazolinyl]oxy]ethanol Acetate Ester; 2-[[4-[(3-Ethynylphenyl)amino]-7-(2-methoxyethoxy)-6-quinazolinyl]oxy]ethanol 1-Acetate; 2-((4-((3-ethynylphenyl)amino)-7-(2-methoxyethoxy)quinazolin-6-yl)oxy)ethyl acetate; Erlotinib 6-O-Desmethyl Acetate; Erlotinib Impurity Ⅰ 
