pivaloyloxymethyl (1R,5S,6S)-2-[(1-(4-fluorobenzyl)azetidin-3-yl)thio]-6-[(R)-1-hydroxyethyl]-1-methyl-carbapen-2-em-3-carboxylate 、
顺丁烯二酸 以
乙酸乙酯 为溶剂,
反应 5.0h,
以50%的产率得到pivaloyloxymethyl (1R,5S,6S)-2-[(1-(4-fluorobenzyl)azetidin-3-yl)thio]-6-[(R)-1-hydroxyethyl]-1-methyl-carbapen-2-em-3-carboxylate maleate