反应详情

To a mixture of 1-acetyl-1H-pyrrolo[2,3-b]pyridine-4-carbonitrile (0.691 g, example 15, step D), 10% Pd/C (0.702 g), 5 mL of Et3N, and 20 mL of EtOAc was added acetic anhydride (1.0 mL). The mixture was stirred at RT under balloon pressure of H2 for overnight. Solid was removed by filtration through a pad of Celite® and the filtrate was concentrated to yield a white residue, which was purified by chromatography through silica gel (150 g, 1 to 5% MeOH/CHCl3 with 1% NH4OH, stepwise gradient) to afford N-(1-acetyl-2,3-dihydro-1H-pyrrolo[2,3-b]pyridin-4-ylmethyl)-acetamide (0.50 g) as white solid.

1. customSolid was removed by filtration through a pad of Celite®
2. concentrationthe filtrate was concentrated
3. customto yield a white residue, which
4. customwas purified by chromatography through silica gel (150 g, 1 to 5% MeOH/CHCl3 with 1% NH4OH, stepwise gradient)