tert-butyl N-[(3aS,7aR)-2,3,4,6,7,7a-hexahydro-1H-pyrano[3,4-c]pyrrol-3a-yl]carbamate

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: [(1S,6R)-1-tert-Butoxycarbonylamino-3-oxa-8-azabicyclo[4,3,0]nonan-8-yl]carboxylic acid benzyl ester (401 mg, 1.07 mmol) was dissolved in methanol (20 mL). 10% palladium-carbon (50% wet) (200 mg) was added, and the mixture was stirred in a hydrogen atmosphere for 2.5 hours. The catalyst was removed by filtration, and then the filtrate was concentrated under reduced pressure. A 1N sodium hydroxide solution was added, followed by extraction with chloroform. After drying over anhydrous sodium sulfate and filtration, the solvent was evaporated under reduced pressure to give 256 mg of the title compound as a colorless solid. The catalyst was removed by filtration the filtrate was concentrated under reduced pressure A 1N sodium hydroxide solution was added followed by extraction with chloroform After drying over anhydrous sodium sulfate and filtration the solvent was evaporated under reduced pressure