| 摘要 |
Antibacterial 7 beta -arylmalonamido-7 alpha -methoxy-3-optionally alkylated thiadiazolylthiomethyl-1-oxadothiacephalosporins of the following formula: <IMAGE> (wherein Ar is 2-thienyl, 3-thienyl, phenyl, p-hydroxyphenyl, p-acyloxyphenyl or p-protected hydroxyphenyl; COB1 and COB2 each is carboxy, protected carboxy or a carboxylate salt; and R is hydrogen or lower alkyl), processes for preparing said compounds, a pharmaceutical or veterinary composition comprising the said compounds and pharmaceutical carrier and a method for treating or preventing human or veterinary infectious diseases comprising administering the said compound. |
