N-[4-[(3-Bromophenyl)amino]-6-quinazolinyl]-2-butynamide194423-06-8100 % similar 4-(3-Bromophenylamino)-6,7-dimethoxyquinazoline153436-54-550 % similar Icotinib610798-31-736 % similar N-(3-Chlorophenyl)-6,7-dimethoxy-4-quinazolinamine153436-53-435 % similar Erlotinib183321-74-634 % similar Erlotinib hydrochloride183319-69-933 % similar N6-(4,5-Dihydro-4,4-dimethyl-2-oxazolyl)-N4-[3-methyl-4-([1,2,4]triazolo[1,5-A]pyridin-7-yloxy)phenyl]-4,6-quinazolinediamine937263-43-932 % similar