| abstract |
The compounds of the invention correspond to the following formula: (CF DRAWING IN BOPI) in which R1 and R2, identical or different, represent the hydrogen atom, a C1 to C6 alkyl group or the phenyl or benzyl group, or else R1 and R2 can form with the nitrogen atom to which they are attached a saturated C4 to C8 heterocycle which may contain a second heteroatom such as oxygen, sulfur or nitrogen, R3 represents the atom of hydrogen or a C1 to C6 alkyl or benzyl group, R4 represents the hydrogen atom or a C1 to C6 alkyl group, R5 represents the hydrogen atom, a halogen atom, a C1 to C6 alkyl group C6, C1-C4 alkoxy, nitro or trifluoromethyl, n is 0, 1 or 2, Ar represents an aromatic or heteroaromatic group, and A, B, C and D each represents CH or one of them represents N and the other CH. |