In vitro antibacterial activity of E-0702, a new semisynthetic cephalosporin

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Abstract
E-0702 is an antipseudomonal cephalosporin derivative which has a broad spectrum of antibacterial activity against clinical isolates of gram-positive and gram-negative bacteria. Its in vitro antibacterial activities were less than those of cefoperazone and cefotaxime against Staphylococcus aureus and Staphylococcus epidermidis, but were significantly high against gram-negative bacteria including the Pseudomonas group. It was most characteristic that E-0702 showed high antibacterial activity against Pseudomonas aeruginosa. E-0702 was relatively stable to inactivation by plasmid-mediated penicillinases and cephalosporinases produced by gram-negative bacteria.