A compound of formula (I '): ** Formula ** in which - R1, each identical or different, is selected from the group consisting of halogen, R, OR, NRR, CN, CF3, C (O ) R, C (O) OR, C (O) NRR ', NO2, (C1-C6) alkylene-OR, (C1-10 C6) alkylene-NRR', (C1-C6) alkylene-CO2R, (C1- C6) alkylene-CONRR ', -O- (C1-C6) alkylene-CO2R, -O- (C1-C6) alkylene-CONRR', CO2- (C1-C6) alkylene-OR, CO2- (C1- C6) alkylene-NRR ', C (O) NH- (C1-C6) alkylene-OR, CONH- (C1-C6) alkylene-NRR', OCF3, SO2R, SO3H, SO2NRR ', NHSO2R, R10C-CR11, (R10) (R11) C>; = C (R11) 2, (C1-C6) alkylene-COR, NHCOR, or (C1-C6) alkyl interrupted by at least one heteroatom chosen from O, N and S; - L1 is CH2; - q is 0, 1, 2, 3 or 4 - X 'is CR7; - R7 is OR; - n is 1 or 2; - p is 1, 2 or 3; - R3, R4, R8 and R8, each identical or different, are selected from the group consisting of H, (C1-C6) linear or branched alkyl, halogen, OH, -O- (C1-C6) alkyl, NRR ', CN, CF3, OR, C (O) R, C (O) OR or C (O) NRR'; - A is chosen from the group consisting of: - -C (O) -; - -C (O) NH-; - L2 is (C1-C6) linear or branched alkylene optionally interrupted by at least one heteroatom chosen from O, NR or S and / or optionally substituted by: R, OR, NRR ', (C1-C6) alkyl-OR, ( C1-C6) alkyl-NRR ', OC (O) R, NHC (O) R, NHC (O) NRR', CN, C (>; = NH) NHOR; - R6 is selected from the group consisting of aryl, heteroaryl, cycloalkyl, heterocycle, H, wherein the aryl, heteroaryl, cycloalkyl or heterocycle is mono or polycyclic and is optionally substituted by one or more of (C1-C6) alkyl linear or branched, halogen, NRR, CN, CF3, OR,>; = O, C (O) R, C (O) OR, NHC (O) R, OC (O) R, (C2-C6) linear alkenylene branched or C (O) NRR '; - each R and R ', identical or different, are independently selected from H, (C1-C6) linear or branched alkyl, cycloalkyl, aryl, aromatic or non-aromatic heterocycle, - (C1-C6) linear or branched alkylaryl or - ( C1-C6) linear or branched alkylheterocycle, wherein the heterocycle is aromatic or non-aromatic; optionally subs