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温度

0 °C

To a solution of (3R)-1-(4-fluoro-benzyl)-3-methyl-piperazine (3 g, 14.4 mmol) in dichloromethane (40 mL) was added triethylamine (2.0 mL, 14.4 mmol). The reaction was cooled to 0° C. and chloroacetyl chloride was added (1.1 mL, 14.4 mmol). The reaction was allowed to warm to ambient temperature and stirred for 2 hours. The reaction is diluted with dichloromethane and washed with 10% citric acid. The organic layer was separated, dried over magnesium sulfate, filtered and concentrated in vacuo. Chromatography on silica gel gave the title compound (3.9 g).

1. temperatureto warm to ambient temperature
2. washwashed with 10% citric acid
3. customThe organic layer was separated
4. dry with materialdried over magnesium sulfate
5. filtrationfiltered
6. concentrationconcentrated in vacuo