methyl (3Z)-3-[[[4-[methyl-[2-(4-methylpiperazin-1-yl)acetyl]amino]phenyl]amino]-phenylmethylidene]-2-oxo-1H-indole-6-carboxylate
methyl (3Z)-3-[[[4-[methyl-[2-(4-methylpiperazin-1-yl)acetyl]amino]phenyl]amino]-phenyl-methylene]-2-oxo-indoline-6-carboxylate
(3Z)-3-[[[4-[methyl-[2-(4-methyl-1-piperazinyl)-1-oxoethyl]amino]phenyl]amino]-phenylmethylene]-2-oxo-6-indolinecarboxylic acid methyl ester
(3Z)-2-keto-3-[[[4-[methyl-[2-(4-methylpiperazin-1-yl)acetyl]amino]phenyl]amino]-phenyl-methylene]indoline-6-carboxylic acid methyl ester
methyl (3Z)-3-[[[4-[methyl-[2-(4-methylpiperazin-1-yl)ethanoyl]amino]phenyl]amino]-phenyl-methylidene]-2-oxo-1H-indole-6-carboxylate