| 摘要 |
The present invention provides a compound of formula (I) wherein X is a structure of the following formula (i), (ii) (iii), or iv G is O, or S; U is -(CR3R4)n-; W is CH2NHC(=G)R1, CH2NH-het, CH2-G-het, CH2het, C(-O)NHR2; and Y1, Y2 and Y3 are independently CH, or CF. The compounds of the present invention are useful as antibacterial agents.
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