Diisopropylethylamine → HCID 59249548, compound

Participants

Reaction Steps

To a stirred solution of rac (2R,3S,4R,5S)-3-(3-Chloro-2-fluoro-phenyl)-4-(4-chloro-2-fluoro-phenyl)-4-cyano-5-(2,2-dimethyl-propyl)-pyrrolidine-2-carboxylic acid (80 mg, 0.138 mmol) in methylene chloride (10 mL), HATU (Aldrich, 79 mg, 0.21 mmol) was added followed by the addition of DIPEA (0.145 mL, 0.83 mmol) and piperidin-4-yl-acetamide (Chembridge, 41 mg, 0.21 mmol). The mixture was stirred at rt for 3 hrs then overnight after the addition of 3 mL of DMF. The reaction was quenched with addition of water. The mixture was extracted with methylene chloride (2×10 mL) and the extracts were dried with magnesium sulfate. The solvent was removed and the residue was purified on an ISCO machine (12 g column, eluent, 20% EtOAc/methylene chloride) to give a white solid. 21 mg.

Provenance & Evidence