DERIVATIVES OF (BRIDGED PIPERAZINYL)-1-ALKANONE AND USE THEREOF AS p75 INHIBITORS

A compound of Formula (II):

• in which:
• m represents 0 or 1;
• A represents:
• and B represents a hydrogen atom
• or
• A represents a hydrogen atom and B represents:
• n represents 1 or 2;
• R1 represents a halogen atom, a (C1-C4)alkyl group, a trifluoromethyl group, a (C1-C4)alkoxy group or a trifluoromethoxy group;
• R2 represents a hydrogen atom, a halogen atom, a (C1-C4)alkyl group, a trifluoromethyl group, a (C1-C4)alkoxy group, a trifluoromethoxy group, a COOR group or a CON H2 group;
• and Hal represents a halogen atom;
• with the exception of 2-chloro-1-[4-(2-methoxyphenyl)-3,6-dihydro-2H-pyridin-1-yl]ethanone and of 2-chloro-1-[4-(4-bromophenyl)-3,6-dihydro-2H-pyridin-1-yl]ethanone;
• in the form of a base or of a pharmaceutically acceptable addition salt with an acid.