反应详情

To (2R,5R)-4-{2-[6-(1,1-difluoro-butyl)-3,3-dimethyl-2,3-dihydro-pyrrolo[3,2-c]pyridin-1-yl]-2-oxo-ethyl}-5-(hydroxy-thiazol-2-yl-methyl)-2-methyl-piperazine-1-carboxylic acid tert-butyl ester (0.076 g, 0.13 mmol) and triethylamine (36 μL, 0.3 mmol) in DCM (0.6 mL) cooled with an ice bath under nitrogen was added methanesulfonyl chloride (12 μL, 0.2 mmol). The reaction was stirred at this temperature for 1 h and then warmed room temperature for 18 h. Saturated aqueous sodium bicarbonate was added and the mixture extracted with EtOAc. The combined organics were washed with brine, dried with sodium sulfate, filtered and concentrated. Chromatography (silica gel, gradient elution, 0-100%, EtOAc in petrol 40-60) gave the title compound (0.03 g). MS: [M+H]+=612.

1. extractionthe mixture extracted with EtOAc
2. washThe combined organics were washed with brine
3. dry with materialdried with sodium sulfate
4. filtrationfiltered
5. concentrationconcentrated
6. washChromatography (silica gel, gradient elution, 0-100%, EtOAc in petrol 40-60)