| abstract |
A compound of the formula (I), or a pharmaceutically-acceptable salt, or in-vivo hydrolysable ester thereof: formula (I) wherein C is selected from D and E, formula (D), formula (E) R2a, R6a, and R3a are independently selected from for example H, CF3, Me and Et; R2b and R6b are independently selected from for example H, F, CF3, Me and Et; R1b is for example acetamido; R4 is for example an optionally substituted 5- or 6- membered heterocyclic ring system. Methods for making compounds of the formula (I), compositions containing them and their use as antibacterial agents are also described. |