4-chloro-2,3-dioxoindoline-5-carboxylic acid   、                                                                                      
(1-methyl-6-oxo-1,6-dihydro-pyridin-3-yl)-acetic acid hydrazide                                                                                                                                                                                                                                                                                                          以a 68% yield of the title compound was obtained as yellow solid from 4-chloro-2,3-dioxoindoline-5-carboxylic acid and 2-(1-methyl-6-oxo-1,6-dihydropyridin-3-yl)acetohydrazide的产率得到4-chloro-3-[2-[2-(1-methyl-6-oxopyridin-3-yl)acetyl]hydrazinyl]-2-oxoindole-5-carboxylic acid