氯磷酸二苯酯 、
N,N-二异丙基乙胺 、
4-nitrobenzyl (4R,5R,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-3,7-dioxo-1-azabicyclo[3.2.0]-heptane-2-carboxylate 、
(2S,4S)-2-[4-(2-Carbamoyloxyethyl)-1-homopiperazinylcarbonyl]4-mercapto-1-(4-nitrobenzyloxycarbonyl)pyrrolidine trifluoromethanesulfonate 在
ice 作用下,
以
乙腈 为溶剂,
反应 17.0h,
以to afford 107 mg of the title compound as a powder的产率得到4-Nitrobenzyl (1R,5S,6S)-2-{(2S,4S)-2-[4-(2-carbamoyloxyethyl)-1-homopiperazinylcarbonyl]-1-(4-nitrobenzyloxycarbonyl)pyrrolidin-4-ylthio}-6-[(1R)-1-hydroxyethyl]-1-methyl-1-carbapen-2-em-3-carboxylate