Antibacterial compounds of formula (I) are provided: as well as stereoisomers, pharmaceutically acceptable salts, esters, and prodrugs thereof pharmaceutical compositions comprising such compounds methods of treating bacterial infections by the administration of such compounds and processes for the preparation of such compounds.本發明係提供式(I)抗細菌化合物:以及其立體異構物、藥學上可接受之鹽、酯及前體藥物;包含此種化合物之醫藥組合物;藉由投予此種化合物治療細菌感染之方法;及製備此種化合物之方法。