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温度

0 °C

N-((3S)-6-Oxo(3-piperidyl))(tert-butoxy)carboxamide (3.9 mmol, 0.83 g) were dissolved in ethanol (10 mL) and cooled to 0° C. Acetyl chloride (2 mL) was added and the reaction was allowed to reach room temperature. The reaction was stirred for 1 hour after which the solvent was removed in vacuo to yield the title compound (725 mg, 99% yield) as the dihydrochloride salt. ES-MS: 115 (M+1).

1. customto reach room temperature
2. customwas removed in vacuo