Trifluoroacetic acid → HCID 11113984, compound

Participants

Reaction Conditions

Reaction Steps

At 0° C., trifluoroacetic acid (20 ml) was added to a solution of N-((1R)-1-{N-[(1R)-1-benzyl-2-((3S)-3-((dimethylamino)methyl)piperidin-1-yl)-2-oxoethyl]-N-methylcarbamoyl}-2-(2-naphthyl)ethyl)-N-methylcarbamic acid tert-butyl ester (1.189, 1.92 mmol) in dichloromethane (20 ml). The reaction mixture was stirred for 50 min at 0° C. The solvent was removed in vacuo. The residue was dissolved in dichloromethane (80 ml) and the solvent was removed in vacuo. The latter procedure was repeated two times. The crude product was purified by flash chromatography on silica (40 g), using dichloromethane/methanol/25% aqueous ammonia (100:10:1) as eluent, to give 788 mg of (2R)-N-[(1R)-1-benzyl-2-((3S)-3-((dimethylamino)m ethyl)piperidin-1-yl)-2-oxoethyl]-N-methyl-2-(methylamino)-3-(2-naphthyl)propionamide.

Provenance & Evidence