Abstract: The invention relates to a compound of formula (I-1) wherein n equals 0 or 1, Z represents O or S, R1 represents one group chosen among the group consisting ofhydrogen, C1-C7 alkyl, substituted, or not, by a halogen, a hydroxyl or a O-R12 group, wherein R12 is a C1-C7 alkyl, a group CH2OCOR5 wherein R5 is chosen among a hydrogen atom and a C1-C7 alkyl, substituted or not by at least one halogen, a group O-R13, wherein R13 is chosen among hydrogen and a C1-C7 alkyl, an amine or a CH2-amine, R1 represents a group chosen among hydrogen and O-R14, wherein R14 is chosen among hydrogen and a C1-C7 alkyl, and R2 is chosen among the group consisting of a C1-C7 alkyl, a C3-C6 cycloalkyl, an aryl group, and an heteroaryl group for its use for the treatment of pathologies involving an excess of activity of at least one member of the kallikrein family.