The invention relates to antibacterial compounds of formula I wherein n is 0 or 1； R1 represents H or F； U represents CH2 or, provided n is 1, O or NH； ----- is a bond or is absent； V represents CH or N when ----- is a bond, or CH2 or NH when ----- is absent； W represents CH or N； A represents &mdash；(CH2)p&mdash；NH&mdash；(CH2)q&mdash； wherein p is 1 and q is 1 or 2 or, provided U represents CH2 and n is 1, p may also be 0 and q is then 2； G represents one of the groups 1 wherein Z represents N or CH and Q represents O or S； and Z0, Z1 and Z2 each represent CH, or Z0 and Z1 each represent CH and Z2 represents N, or Z0 represents CH, Z1 represents N and Z2 represents CH or N, or Z0 represents N and Z1 and Z2 each represent CH； and to salts of such compounds.
