反应详情

A solution of benzyl N-(2-{6,6-dimethyl-1-[2-(trimethylsilyl)ethoxymethyl]-4,5,6,7-tetrahydro-1H-indazol-3-yl}-1-[2-(trimethylsilyl)ethoxymethyl]-1H-indol-6-yl)-N-methylcarbamate (2.2 g, 3.1 mmol), 10% palladium-carbon (216 mg) and ammonium formate (989 mg, 16 mmol) in ethanol (30 ml) was heated under reflux for 2.5 hr. After cooling, the reaction mixture was filtered through celite, and the filtrate was concentrated. The residue was purified by silica gel chromatography to give the title compound (1.4 g, yield 79%).

1. temperatureunder reflux for 2.5 hr
2. temperatureAfter cooling
3. filtrationthe reaction mixture was filtered through celite
4. concentrationthe filtrate was concentrated
5. customThe residue was purified by silica gel chromatography