| 摘要 |
Compounds of the formula (I) are disclosed and are useful in the treatment bacterial infections: wherein: R<1 >is Ar or Het; R<2 >is C1-6alkyl, (R'')2N-(CH2)m- or Ar-C0-6alkyl; X is H, C1-4alkyl, OR', SR', C1-4alkylsulfonyl, C1-4alkylsulfoxyl, CN, N(R')2, CH2N(R')2, NO2, CF3, CO2R', CON(R')2, COR', NR'C(O)R', F, Cl, Br, I, or CF3S(O)r-; R' is H, C1-6alkyl or Ar-C0-6alkyl; each R'' independently is H, C1-6alkyl or Ar-C0-6alkyl; m is 1 or 2; n is 0, 1 or 2; and r is 0, 1 or 2; or a pharmaceutically acceptable salt thereof.
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