| 摘要 |
<p>Compounds having formula (I), or pharmaceutically acceptable salts or prodrugs thereof, wherein A1 is nitrogen or (II), wherein W is selected from the group consisting of (1) hydrogen and (2) optionally substituted alkyl; A2 is selected from the group consisting of (1) -S-, (2) -O-, and (3) -N(R7)-, wherein R7 is hydrogen or C1-C6 alkyl; and R5 and R6 together are a carbocyclic or a heterocyclic ring, are useful as antibacterial agents.</p> |
