3-(mercaptomethyl)-thiazolo<3,2-a>benzimidazole 、
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 在
N,N-二异丙基乙胺 作用下,
以
乙腈 为溶剂,
反应 2.0h,
以60%的产率得到p-nitrobenzyl (1R,5S,6S)-6-<(1R)-1-hydroxyethyl>-2-<(thiazolo<3,2-a>benzimidazole-3-yl)methyl>thio-1-methylcarbapen-2-em-3-carboxylate