1 DXQ 7-[3-(dimethylamino)propoxy]-6-methoxy-2-(4-methyl-1,4-diazepan-1-yl)-N-(1-methylpiperidin-4-yl)quinazolin-4-amine 1.000 2 7L6 6,7-dimethoxy-N-(1-methylpiperidin-4-yl)-2-(morpholin-4-yl)quinazolin-4-amine 0.750 3 Q4A N-(1-benzylpiperidin-4-yl)-6,7-dimethoxy-2-(4-methyl-1,4-diazepan-1-yl)quinazolin-4-amine 0.732