Diazomethane → HCID 67490851, compound

Participants

Reaction Steps

Palladium acetate (5.26 mg, 0.0234 mmol) was added to (1S,5R)-3-benzyloxycarbonyl-1-tert-butoxycarbonylamino-7-methylene-3-azabicyclo[3.3.0]octane (175 mg, 0.469 mmol) in diethyl ether (4.69 ml) in an open system under ice-cooling. The previously prepared solution of diazomethane in diethyl ether (20 ml) was slowly added to this solution under ice-cooling, and the mixture was stirred at room temperature for 16 hours. After filtration through Celite, the filtrate was concentrated under reduced pressure. The residue was purified by silica gel column chromatography (hexane:ethyl acetate=100:0→95:5→90:10→88:12→87:13→86:14→85:15→83:17→80:20→75:25) to give 138 mg of the title compound as a transparent oil.

Provenance & Evidence