| abstract |
Piperidine derivatives and pharmaceutically acceptable derivatives of formula (I) thereof useful in methods of treatment of bacterial infections in mammals, particularly in man. Wherein: RA is an optionally substituted bicyclic carbocyclic or heterocyclic ring system of structure (i), and R4 is a group -U-R5 where U is selected from CO, SO2 and CH2 and R5 is an optionally substituted bicyclic carbocyclic or heterocyclic ring system (A). |