3-Acetoxymethyl-7-chloro-3-cephem-4-carboxylate-1,1-dioxide tert-butylester 5-Thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid, 3-((acetyloxy)methyl)-7-chloro-8-oxo-, 1,1-dimethylethyl ester, 5,5-doxide, (6R-cis)- 95672-01-8 Amcccdb