4-nitrobenzyl (4R,5S,6S)-3-[(diphenylphosphono)oxy]-6-[(R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate 、
(2S,4S)-4-mercapto-2-(N-methylpiperidin-4-yl)-N-(p-nitrobenzyloxycarbonyl)pyrrolidine trifluoroacetic acid salt 在
氮 、 ice 、
乙腈 作用下,
以
乙腈 、
N,N-二异丙基乙胺 为溶剂,
反应 15.0h,
以to obtain p-nitrobenzyl (1R,5S,6S)-6-[(R)-1-hydroxyethyl]-1-methyl-2 -[(2S,4S)-2-(N-methylpiperidin-4-yl)pyrrolidin-4-ylthio]-1-carbapen-2-em-3-carboxylate (2.12 g, yield: 69.7%)的产率得到p-nitrobenzyl (1R,5S,6S)-6-[(R)-1-hydroxyethyl]-1-methyl-2-[(2S,4S)-2-(N-methylpiperidin-4-yl)pyrrolidin-4-ylthio]-1-carbapen-2-em-3-carboxylate