HCID 90051995, compound → HCID 90052007, compound

Participants

Reaction Steps

To a suspension of 10% palladium-carbon (500 mg) in methanol (4 mL), tert-butyl (2-((tert-butoxycarbonyl)amino)ethyl)(3-nitrophenyl)carbamate (B12, 500 mg) was added at room temperature, and the mixture was stirred at room temperature for 1 hour and 30 minutes under a hydrogen atmosphere. To the reaction mixture, methanol was added, the insoluble matter was removed by filtration through Cerite, and then the solvent was evaporated under reduced pressure. The obtained residue was purified by basic silica gel column chromatography (eluent, 75 to 70% hexane in ethyl acetate) to obtain tert-butyl(3 -aminophenyl)(2-((tert-butoxycarbonyl)amino)ethyl)carbamate (B13, 140 mg).

Provenance & Evidence