Compounds of formula: wherein: - R 1 represents a halogen, a methyl, ethyl, isopropyl, trifluoromethyl, nitrile, nitro, methoxy, ethoxy, iso-propoxy, thiomethyl, thioethyl or thio isopropyl group; - R 2 represents a hydrogen atom; - R 3 represents a hydrogen atom or a C 1-6 alkyl group; - R 4, R 5, R 6, R 7 are identical or different and represent either a hydrogen atom or a C 1-6 alkyl, C 3-7 cycloalkyl, C 1-6 alkyloxy, -S 1 -C 1-6 alkyl, C 1-6 fluoroalkyl, C 1-6 fluoroalkyloxy, -(CH 2) i -C 3-9 cycloalkyl, C 1-6 alkyl-OH, -(CH 2) i - 1-6 alkyloxy, -(CH 2) i -C 1-6 fluoroalkyl, -(CH 2) i -O-C 1-6 fluoroalkyl, COR a, CN, NR 10 R 11 group, or halogen or a phenyl or heteroaryl group containing either a) of 1 to 4 carbon nitrogen or b) an oxygen atom or sulfur atom and 1 or 2 nitrogen atoms, these groups phenyl and heteroaryl can optionally be substituted by one to three identical or different groups Rc - R a and R f are identical or different and represent a C 1-6 alkyl, C 1-6 alkyloxy or NR 12 R 13 group, - R c represents halogen, a C 1-6 alkyl, C 3-7 cycloalkyl, C 1-6 alkyloxy, -S k -C 1-6 alkyl, C 1-6 fluoroalkyl, C 1-6 fluoroalkyloxy, -(CH 2) g -C 3-7 cycloalkyl, OH, -(CH 2) g -C 3-7 cycloalkyl, C 1-6 alkyl-OH, -(CH 2) g -C 1-6 alkyloxy, -(CH 2) g -C 1-6 fluoroalkyl, -(CH 2) w -O-C 1-6 fluoroalkyl, COR f, CN, or NR 14 R 15 group, - R 10, R 11, R 12, R 13, R 14 and R 15 are identical or different and represent a hydrogen atom, a C 1-6 alkyl, C 3-7 cycloalkyl, -(CH 2) h -C 3-7 cycloalkyl or -(CH 2) h -C 1-6 fluoroalkyl group, optionally the groups R 10 and R 11 may form with the nitrogen atom which carries them a heterocycle as: azetidine, pyrrolidine, piperidine, azepane, morpholine or piperazine, optionally the groups R 12 and R 13 may form with the nitrogen atom which carries them a heterocycle as: azetidine, pyrrolidine, piperidine, azepane, morpholine or piperazine, optionally the groups R 14 and R 15 may form, with the nitrogen atom which carries them a heterocycle as: azetidine, pyrrolidine, piperidine, azepane, morpholine or piperazine, - g, h, and i are identical or different and are 1, 2 or 3 - k and l are identical or different and are 0, 1 or 2 - w is equal to 2, 3 or 4 and their pharmaceutically acceptable salts, hydrates or solvates and their conformers or rotamers. - R 1 represents a halogen, a methyl, ethyl, isopropyl, trifluoromethyl, nitrile, nitro, methoxy, ethoxy, iso-propoxy, thiomethyl, thioethyl or thio isopropyl group; - R 2 represents a hydrogen atom; - R 3 represents a hydrogen atom or a C 1-6 alkyl group; - R 4, R 5, R 6, R 7 are identical or different and represent either a hydrogen atom or a C 1-6 alkyl, C 3-7 cycloalkyl, C 1-6 alkyloxy, -S 1 -C 1-6 alkyl, C 1-6 fluoroalkyl, C 1-6 fluoroalkyloxy, -(CH 2) i -C 3-9 cycloalkyl, C 1-6 alkyl-OH, -(CH 2) i - 1-6 alkyloxy, -(CH 2) i -C 1-6 fluoroalkyl, -(CH 2) i -O-C 1-6 fluoroalkyl, COR a, CN, NR 10 R 11 group, or halogen or a phenyl or heteroaryl group containing either a) of 1 to 4 carbon nitrogen or b) an oxygen atom or sulfur atom and 1 or 2 nitrogen atoms, these groups phenyl and heteroaryl can optionally be substituted by one to three identical or different groups Rc - R a and R f are identical or different and represent a C 1-6 alkyl, C 1-6 alkyloxy or NR 12 R 13 group, - R c represents halogen, a C 1-6 alkyl, C 3-7 cycloalkyl, C 1-6 alkyloxy, -S k -C 1-6 alkyl, C 1-6 fluoroalkyl, C 1-6 fluoroalkyloxy, -(CH 2) g -C 3-7 cycloalkyl, OH, -(CH 2) g -C 3-7 cycloalkyl, C 1-6 alkyl-OH, -(CH 2) g -C 1-6 alkyloxy, -(CH 2) g -C 1-6 fluoroalkyl, -(CH 2) w -O-C 1-6 fluoroalkyl, COR f, CN, or NR 14 R 15 group, - R 10, R 11, R 12, R 13, R 14 and R 15 are identical or different and represent a hydrogen atom, a C 1-6 alkyl, C 3-7 cycloalkyl, -(CH 2) h -C 3-7 cycloalkyl or -(CH 2) h -C 1-6 fluoroalkyl group, optionally the groups R 10 and R 11 may form with the nitrogen atom which carries them a heterocycle as: azetidine, pyrrolidine, piperidine, azepane, morpholine or piperazine, optionally the groups R 12 and R 13 may form with the nitrogen atom which carries them a heterocycle as: azetidine, pyrrolidine, piperidine, azepane, morpholine or piperazine, optionally the groups R 14 and R 15 may form, with the nitrogen atom which carries them a heterocycle as: azetidine, pyrrolidine, piperidine, azepane, morpholine or piperazine, - g, h, and i are identical or different and are 1, 2 or 3 - k and l are identical or different and are 0, 1 or 2 - w is equal to 2, 3 or 4