Compounds of Formula (1) and their pharmaceutically acceptable salts are described: Formula (1) Processes for their preparation, pharmaceutical compositions containing them, their use as medicaments and their use in the treatment of bacterial infections are also described.
[EN] PYRIDINE DERIVATIVE, PREPARATION METHOD THEREFOR AND USE THEREOF<br/>[FR] DÉRIVÉ DE PYRIDINE, SON PROCÉDÉ DE PRÉPARATION ET SON UTILISATION<br/>[ZH] 一种吡啶类衍生物、其制备方法及用途