反应详情

To a stirred solution of (R)-tert-butyl 4-(3-(sec-butylcarbamoyl)benzyl)piperazine-1-carboxylate (5.33 mmol, 2 g) in dichloromethane (10 mL) was added trifluoroacetic acid (5 mL). The reaction mixture was stirred for 24 hours then was concentrated under reduced pressure. Purification by strong cation exchange column chromatography gave the title compound (1.4 g). MS (ESI) m/z 276.3 ([M+H]+).

1. concentrationthen was concentrated under reduced pressure
2. customPurification by strong cation exchange column chromatography