反应详情

To a solution of (3S,4S)-4-(1-t-butyldimethylsilyloxymethylethenyl)-3-(1-(R)-benzyloxycarbonyloxyethyl)-1-di(p-anisyl)methyl-2-azetidinone (20 g) in acetonitrile (200 ml), there were added 5% platinium on activated carbon (4.0 g) and water (4 ml) under nitrogen atmosphere. The mixture was stirred at 10° C. in a hydrogen gas flow until 2.2 equivalents of hydrogen had been taken up. The catalyst was removed by filtration and washed with ethyl acetate. The filtrate and the washings were combined together and concentrated in vacuo to give (3S,4S)-4-(1-t-butyldimethylsilyloxymethylethyl)-3-(1-(R)-benzyloxycarbonyloxyethyl)-1-di-(p-anisyl)methyl-2-azetidinone as an oil.

1. customThe catalyst was removed by filtration
2. washwashed with ethyl acetate
3. concentrationconcentrated in vacuo