反应详情

1.5 ml of acetic anhydride was added to a pyridine (50 ml) solution of 4.3 g of N-(3-fluoro-4-pyrrolidin-2-ylphenyl)pyrazine-2-carboxamide dihydrochloride, and the reaction liquid was stirred at room temperature for 20 minutes. The reaction liquid was diluted with chloroform, washed with water and saturated saline in order, and dried with anhydrous magnesium sulfate. The solvent was evaporated away under reduced pressure, and the resulting residue was purified through silica gel column chromatography (developing solvent: chloroform/methanol=50/1) to obtain the entitled compound as a yellow solid.

1. customthe reaction liquid
2. customThe reaction liquid
3. washwashed with water and saturated saline in order
4. dry with materialdried with anhydrous magnesium sulfate
5. customThe solvent was evaporated away under reduced pressure
6. customthe resulting residue was purified through silica gel column chromatography (developing solvent: chloroform/methanol=50/1)