Acetic Acid → HCID 66971236, compound

Participants

Reaction Steps

To a solution of (2S,4S)-t-BOC-2-(aminomethyl)-4-[(4,4-dimethylcyclohexyl)(2,2-dimethylpropanoyl)amino]pyrrolidine (500 mg, 1.21 mmol) prepared in Step A of Example B7 in DMF was added dropwise acetic acid (80 mg, 1.3 mmol), HBTU (490 mg, 1.28 mmol) and DIPEA (0.56 ml, 3.22 mmol) in order. After the reaction mixture was stirred at rt for 5 h, the solution was concentrated in vacuo. The residue was diluted with EtOAc, and washed with a saturated NaHCO3 aqueous solution, water and 1N HCl. The organic solution was dried over MgSO4, and concentrated in vacuo. The residue was purified by column chromatography (eluent: EtOAc:Hex=1/2) to give the title compound (508 mg, 93%).

Provenance & Evidence