反应详情

温度

100 °C

Following the general method as outlined in Example 1, into a suspension of 5-iodo-1H-indole-2,3-dione in acetic acid in the presence of 5% TFA was added tert-butyl 2-{4-[(6-methoxy-6-oxohexanoyl)amino]benzoyl)hydrazinecarboxylate. After stirring at 100° C., the reaction mixture was cooled to rt and a yellow solid precipitated out. Filtration on a fritté, washing with AcOH, water and drying under vacuo at 70° C. for 15 hrs gave 496 mg of the title compound (82%) as a yellow solid in 99.5% purity by HPLC (MaxPlot detection between 230 and 400 nm).

1. temperaturethe reaction mixture was cooled to rt
2. customa yellow solid precipitated out
3. filtrationFiltration on a fritté
4. washwashing with AcOH, water
5. customdrying under vacuo at 70° C. for 15 hrs