反应详情

tert-Butyl (3S)-pyrrolidin-3-ylcarbamate (0.65 g, 3.5 mmol), 1-[3-(trifluoromethyl)phenyl]piperidine-4-carboxylic acid (0.80 g, 2.9 mmol), triethylamine (0.82 mL, 5.8 mmol) and benzotriazol-1-yloxytris(dimethylamino)phosphonium hexafluorophosphate (1.4 g, 3.2 mmol) were mixed in dry methylene chloride (10 mL). After being stirred overnight, the reaction mixture was diluted with EtOAc and washed with saturated NaHCO3. The aqueous layer was extracted with EtOAc three times. The combined organic layers were dried (MgSO4), concentrated and flash chromatographed (20% EtOAc/hexanes to 40% EtOAc/hexanes) to give 0.975 g of the desired product. MS (M+H) 442.1.

1. washwashed with saturated NaHCO3
2. extractionThe aqueous layer was extracted with EtOAc three times
3. dry with materialThe combined organic layers were dried (MgSO4)
4. concentrationconcentrated
5. customflash chromatographed (20% EtOAc/hexanes to 40% EtOAc/hexanes)