Diphenylmethyl (6R,7R)-3-(Chloromethyl)-8-oxo-7-[(phenylmethylene)amino]-5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid Ester

Diphenylmethyl (6R,7R)-3-(Chloromethyl)-8-oxo-7-[(phenylmethylene)amino]-5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid Ester is an intermediate used in the synthesis of 1-[[(6R,7R)-7-Amino-2-carboxy-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl]methyl]-1-methylpyrrolidinium Chloride (A603160), which is an impurity in the synthesis of Cefepime (C242750), a semisynthetic, fourth generation cephalosporin antibiotic. Antibacterial.