The present invention is related to novel compounds of formula (I) that inhibit the activity of the FabI enzyme which are therefore useful in the treatment of bacterial infections. It further relates to pharmaceutical compositions comprising these compounds, and chemical processes for preparing these compounds.本發明係關於抑制FabI酵素活性之新穎的式(I)化合物,其因此可用於治療細菌感染。其進一步係關於包括這些化合物之醫藥組成物,及製備這些化合物之化學方法。