1 6H4 N-{2-[(5-chloro-2-{[4-(4-methylpiperazin-1-yl)phenyl]amino}pyrimidin-4-yl)oxy]phenyl}prop-2-enamide 1.000 2 5KW 2-chloro-N-{2-[(5-chloro-2-{[4-(4-methylpiperazin-1-yl)phenyl]amino}pyrimidin-4-yl)oxy]phenyl}acetamide 0.941 3 0UN N-{3-[(5-chloro-2-{[2-methoxy-4-(4-methylpiperazin-1-yl)phenyl]amino}pyrimidin-4-yl)oxy]phenyl}prop-2-enamide 0.700