203252-14-6

(3R,4R)-4-(Acetyloxy)-3-[(1R)-1-[[(1,1-dimethylethyl)dimethylsilyl]oxy]ethyl]-1-(4-methoxyphenyl)-2-azetidinone is a reactant used to synthesis 3R,4R)-4-acetoxy-3-[(R)-1''((t-butyldimethylsilyl)oxy)ethyl]-2-azetidinone, which is an intermediate in the preparation of carbapenem antibiotics.