(E)-methyl 1-acetyl-3-(ethoxy(phenyl)methylene)-2-oxoindoline-6-carboxylate 、
4-[N-ethyl-N-(2-dimethylamino-ethyl)-aminocarbonyl]-aniline 以36%的产率得到methyl 3-(Z)-[1-{4-[(2-dimethylamino-ethyl)-N-ethyl-carbamoyl]-phenylamino}-1-phenyl-methylidene]-2-indolinone-6-carboxylate