(4S,5R,6S)-6-((R)-1-Allyloxycarbonyloxy-ethyl)-3-(5-methanesulfonyloxymethyl-1,1-dioxo-1H-1λ
6-naphtho[1,8-cd]isothiazol-2-ylmethyl)-4-methyl-7-oxo-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid allyl ester 在
sodium iodide 作用下,
以
丙酮 为溶剂,
生成
allyl (1S,5R,6S)-2-(5-(iodomethyl-1,8-naphthosultam)methyl)-6-[1(R)-(allyloxycarbonyl)oxyethyl]-1-methylcarbapen-2-em-3-carboxylate