反应详情

General Procedure G. To a solution of 1-benzyl-3-(3,4-difluorobenzylcarbamoyl)-2-isopropyl-1H-indole-6-carboxylic acid (Compound 56, 30 mg, 0.065 mmol) in DMF (3 ml) was added BOP (35 mg, 0.090 mmol) and DIPEA (17 mg, 0.098 mmol), followed by ethanolamine (6 mg, 0.098 mmol). The reaction was stirred at room temperature for 12 h, diluted with EtOAc, washed with H2O, brine, dried over Na2SO4 and concentrated in vacuo. The residue was purified by chromatography on silica gel (5:95 MeOH—CH2Cl2) to yield the title compound as a yellow oil.

1. washwashed with H2O, brine
2. dry with materialdried over Na2SO4
3. concentrationconcentrated in vacuo
4. customThe residue was purified by chromatography on silica gel (5:95 MeOH—CH2Cl2)