| 摘要 |
<p>Novel compounds represented by general formula (I) (wherein Ro represents a nitrogen-containing heterocyclic group, an acyl group or an esterified carboxyl group, Z represents S, S$(1,4)$O, O or CH¿2, R?4 represents hydrogen, methoxy or formamido, R13 represents hydrogen, methyl, hydroxy or halogen, and A represents an optionally substituted thiazol-3-yl group forming a fused ring at positions 4 and 5), possess an excellent antibacterial activity.</p> |
