The present Invention belongs to the field of Antibacterial antibacterial agents, More specifically to treat infections caused by Acinetobacter baumannii. The Invention provides arilhidrazidas containing a fraction of 2 - piridona, according to formula (i), which shows Selective antibacterial activity against A. baumannii.The Invention also relates to their use as Medicines and specifically as antibacterial Agents for the treatment of infections caused by A. baumannii, as well as to a process for their Preparation and Pharmaceutical compositions containing themLa presente invencion pertenece al campo de agentes antibacterianos, mas especificamente a antibacterianos para tratar infecciones por Acinetobacter baumannii. La invencion proporciona arilhidrazidas que contienen una fraccion de 2-piridona, segun la formula (I), la cual muestra actividad antibacteriana selectiva contra A. baumannii. La invencion tambien se refiere a su uso como medicamentos y especificamente como antibacterianos para el tratamiento de infecciones por A. baumannii, asi como a un proceso para su preparacion y a composiciones farmaceuticas que los contienen
