反应详情

To 3-fluoro-4-(4-methylpiperazin-1-yl)benzoic acid (250 mg, 1.05 mmol) in THF (10 ml) was added triethylamine (221 μl, 1.58 mmol) and isobutyl chloroformate (145 μl, 1.10 mmol). The mixture was stirred at 0° C. for 1 hour, at which time concentrated aqueous ammonia (3 ml) was added. The reaction mixture was stirred for 3 hours then the volume was reduced in vacuo. The residue was diluted with water and extracted with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate, filtered, and then concentrated to afford (30.0 mg, 12%) of 3-fluoro-4-(4-methylpiperazin-1-yl)benzamide, which was used without further purification. MS (EI) for C12H16FN3O: 238 (MH+).

1. additionwas added
2. extractionextracted with ethyl acetate
3. washThe organic layer was washed with brine
4. dry with materialdried over anhydrous sodium sulfate
5. filtrationfiltered
6. concentrationconcentrated