T. lt; P gt; the present invention concerns to new benzo-n-hydroxy amine compounds of formula (I) and pharmaceutically acceptable sales, isomers and prodrugs thereof, which show a significant investment activity on the promotion of tumor cells and specifically of cancer stem cells. lt; / P gt;<;p>;The present invention relates to new benzo-N-hydroxy amide compounds of formula (I) and pharmaceutically acceptable salts, isomers and prodrugs thereof, which show a significant inhibitory activity on the proliferation of tumor cells and specifically of cancer stem cells.<;/p>;