Generally speaking, this invention refers to an antimicrobial compound of primary, secondary, trifluoropropyl acetate and trifluoropropyl acetate; LT; P GT; FRMula LT space; P GT; and trifluoropropyl acetate and its format, as further explained in this document. Compounds of the present invention are active substances for the treatment of bacterial infections, such as bacterial infections caused by Gram-negative bacteria.<;p>;Esta invención se refiere en general a compuestos antibacterianos de Ia Formula I,<;/p>; <;p>;ESPACIO PARA FÓRMULA<;/p>; <;p>;como se describe adicionalmente en este documento, y las sales trifluoroacetato y formato de los mismos. Los compuestos de la presente invención son activos para tratar infecciones bacterianas tales como las causadas por bacterias Gram-negativas.<;/p>;