Methyl (E)-3-(methoxy(phenyl)methylene)-2-oxoindoline-6-carboxylate;(3E)-2,3-Dihydro-3-(methoxyphenylmethylene)-2-oxo-1H-Indole-6-carboxylic Acid Methyl Ester;Methyl (E)-3-(methoxy(phenyl)methylene)-2-oxoindoline-6-carboxylate;