Triethylamine → HCID 86742436, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 0.71 ml of triethylamine and 1.1 g of p-nitrobenzyloxyoxalyl chloride in 10 ml of methylene chloride was added to a solution of 0.9 g of (3S,4S)-3-[(1R)-1-trimethylsilyloxyethyl]-4-[(1RS)-1-(phenylthiocarbonyl)ethyl]-2-azetidinone in 10 ml of methylene chloride, cooled to about -30° C., and the mixture was stirred for 35 minutes at the same temperature. The reaction mixture was worked up and purified in the same manner as in Preparation 1(3), giving (3S,4S)-3-[(1R)-1-trimethylsilyloxyethyl]-4-[(1RS)-1-(phenylthiocarbonyl)ethyl]-1-(p-nitrobenzyloxyoxalyl)-2-azetidinone as an oil.

Provenance & Evidence