(Z)-5-{(R)-1-((R)-1-Carboxy-2-methyl-propylcarbamoyl)-2-[(R)-2-((R)-1-carboxy-2-methyl-propylcarbamoyl)-2-((Z)-5-carboxy-pent-3-enoylamino)-ethyldisulfanyl]-ethylcarbamoyl}-pent-3-enoic acid 在
isopenicillin-N synthase iron(II) sulfate 、
维生素 C 、
1,4-二巯基-2,3-丁二醇 作用下,
以
various solvent(s) 为溶剂,
以5%的产率得到(2S,5R,6R)-1-aza-6-(cis-5'-carboxy-3'-pentenoylamido)-3,3-dimethyl-7-oxo-4-thiabicyclo(3.2.0)heptane-2-carboxylic acid