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温度

0 °C

6-fluoro-3-methylimidazo[1,2-a]pyridin-2-amine (0.033 g, 0.00020 mol) was dissolved in dichloromethane (3.0 mL) and N,N-diisopropylethylamine (0.070 mL, 0.00040 mol) was added. The reaction was cooled to 0° C. and 3,3,3-trifluoropropionyl chloride (29 uL, 0.00024 mol) was added. The mixture was warmed to room temperature and was stirred for 1 hour. Solvent removed and residue was chromatographed on silca (70% ethyl acetate/hexanes) to give 3,3,3-trifluoro-N-(6-fluoro-3-methylimidazo[1,2-a]pyridin-2-yl)propanamide Rf 0.43, 70% ethyl acetate/hexanes; MS m/z 276 (M+H). SH-SY5Y_EC50 (μM): 10.

1. temperatureThe mixture was warmed to room temperature
2. customSolvent removed
3. customresidue was chromatographed on silca (70% ethyl acetate/hexanes)