Methanol → HCID 67097916, compound

Participants

Reaction Steps

A mixture of tert-butyl [2-[4′-[[[[2-(benzyloxy)-ethyl]sulfonyl]amino]carbonyl]-3′-(cyclohexyloxy)-4-biphenylyl]ethyl][(2R)-2-hydroxy-2-(4-nitrophenyl)ethyl]-carbamate (215 mg), 10% palladium on activated carbon (50% wet, 645 mg), ammonium formate (845 mg), methanol (6.45 ml) and water (0.65 ml) was refluxed for 20 minutes. After cooling to room temperature, the catalyst was removed by filtration and washed with methanol. The filtrate was concentrated in vacuo and the residue was chromatographed on silica gel (eluent: hexane/ethyl acetate) to give tert-butyl [(2R)-2-(4-aminophenyl)-2-hydroxyethyl][2-[3′-(cyclohexyloxy)-4′-[[[(2-hydroxyethyl)sulfonyl]amino]carbonyl]-4-biphenylyl]ethyl]-carbamate (123 mg) as a pale-yellow solid.

Provenance & Evidence