Diisopropylethylamine → HCID 19705443, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of tert-butyl α-(2-aminoethyl)-3-(2-methylpropyl)-2-oxo-1-(2-phenylethyl)-3-pyrrolidineacetate (549 mg, 1.36 mmol), CH2Cl2 (8.4 mL), and diisopropylethylamine (0.29 ml, 1.6 mmol) at 0° C. is added 3,4-difluorobenzoyl chloride (0.21 mL, 1.6 mmol). The solution is stirred at 0° C. for 1 hour and 16 hours at room temperature. Basic workup (CH2Cl2, NaHCO3, MgSO4) and purification by flash chromatography (1:1 hexane:EtOAc) gives 477 mg (64%) of the title compound as a white solid (mp 147°-148° C.):

Provenance & Evidence