Patent ID: 8486971

Claim:
A compound of formula (I): in which: R 1 represents: an —NR 5 R 6 group; a phenyl which is unsubstituted or substituted one or more times with substituents chosen independently from a halogen atom, a (C 1 -C 4 )alkyl, a (C 1 -C 4 )alkoxy and a trifluoromethyl; R 2 represents: a (C 1 -C 4 )alkyl; an —X—R 7 group; R 3 and R 4 each independently represent a phenyl substituted one or more times with a substituent chosen independently from a halogen atom, a (C 1 -C 4 )alkyl, a (C 1 -C 4 )alkoxy and a trifluoromethyl; R 5 represents a hydrogen atom or a (C 1 -C 4 )alkyl; R 6 represents a (C 1 -C 4 )alkyl which is unsubstituted or substituted with one or more fluorine atoms or with a phenyl which is unsubstituted or substituted with a halogen atom; or else R 5 and R 6 , together with the nitrogen atom to which they are bonded, constitute a heterocycle chosen from: azetidine, pyrrolidine, and piperidine, said heterocycle being unsubstituted or substituted one or more times with a halogen atom; X represents a (C 1 -C 5 )alkylene; R 7 represents an —OR 8 group, an —NR 9 R 10 group or an —SO 2 —(C 1 -C 4 )alkyl group; R 8 represents a hydrogen atom or a (C 1 -C 4 )alkyl; R 9 represents a hydrogen atom or a (C 1 -C 4 )alkyl; R 10 represents a hydrogen atom, a —COR 11 group, an —SO 2 R 11 group or a —CO(CH 2 ) m OH group; R 11 represents a (C 1 -C 4 )alkyl which is unsubstituted or substituted with one or more fluorine atoms; m represents 1, 2 or 3; in the form of a base or of an addition salt with an acid.