Methyl iodide →

Participants

Reaction Steps

To a solution of allyl (4R,5S,6S)-3-[(2R,4S)-1-allyloxycarbonyl-2-{2-(1-methylimidazol-2-yl)ethyl}-pyrrolidin-4-yl]thio-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate (3.58 g) in acetone (17 ml) was added iodomethane (2.05 ml) with stirring at ambient temperature and then allowed to stand overnight. The reaction mixture was evaporated in vacuo and dried in vacuo for 1 hour to give allyl (4R,5S,6S)-3[(2R,4S)-1-allyloxycarbonyl-2-{2-(1,3-dimethyl-2-imidazolio)ethyl}pyrrolidin-4-yl]thio-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate iodide (3.68 g).

Provenance & Evidence