4-nitrobenzyl (4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-3-[(2S,4S)-1-(4-nitrobenzyloxycarbonyl)-2-{4,5,6,7-tetrahydropyrazolo [1,5-a]pyrimidin-4-yl}methyl pyrrolidin-4-yl]thio-7-oxo-1-azabicyclo[3,2,0]hept-2-ene-2-carboxylate 、
碘甲烷 以
丙酮 、
四氢呋喃 为溶剂,
反应 16.0h,
以to give 4-nitrobenzyl (4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-3-[(2S,4S)-1-(4-nitro benzyloxycarbonyl)-2-{1-methyl-4,5,6,7-tetrahydro-4-pyrazolo [1,5-a]primidinio}methylpyrrolidin-4yl]thio-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate iodide (0.88 g)的产率得到4-nitrobenzyl (4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-3-[(2S,4S)-1-(4-nitro benzyloxycarbonyl)-2-{1-methyl-4,5,6,7-tetrahydro-4-pyrazolo [1,5-a]primidinio}methylpyrrolidin-4yl]thio-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate iodide