Patent ID: 7687537

Claim:
A compound of the formula (I): in which: X represents a group R 1 represents: a (C 6 -C 12 )alkyl; a nonaromatic (C 3 -C 12 ) carbocyclic radical which is unsubstituted or substituted once or several times with a (C 1 -C 4 )alkyl; a methyl which is substituted with a nonaromatic C 3 -C 12 carbocyclic radical and which is unsubstituted or substituted once or several times on the carbocycle with a (C 1 -C 4 )alkyl; a phenyl which is mono-, di- or -trisubstituted with substituents independently chosen from a halogen atom, a (C 1 -C 4 )alkoxy, a (C 1 -C 4 )alkylamino, a di-(C 1 -C 4 )alkylamino, a cyano, a trifluoromethyl radical, a trifluoromethoxy radical, an S(O) n Alk group, a (C 1 -C 4 )alkylcarbonyl group, and methylenedioxy; or substituents chosen from phenyl, phenoxy, pyrrolyl, imidazolyl, pyridyl and pyrazolyl radical, said radicals being unsubstituted or substituted once or several times with a (C 1 -C 4 )alkyl; a benzyl which is mono- or disubstituted on the phenyl with substituents independently chosen from a halogen atom, a (C 1 -C 4 )alkyl, a (C 1 -C 4 )alkoxy, a trifluoromethyl radical, and (trifluoromethyl)thio radical; or the phenyl substituted at the alpha-position with one or two similar or different groups chosen from a (C 1 -C 4 )alkyl, a (C 3 -C 7 )cycloalkyl, or a pyrrolyl radical; a phenethyl which is unsubstituted or mono- or disubstituted on the phenyl with substituents independently chosen from the halogen atom, a (C 1 -C 4 )alkyl, a (C 1 -C 4 )alkoxy, and a trifluoromethyl radical; a 1,2,3,4-tetrahydronaphthyl or a 5,6,7,8-tetrahydronaphthyl which is unsubstituted or mono- or disubstituted with substituents independently chosen from a (C 1 -C 4 )alkyl, a (C 1 -C 4 )alkoxy and a trifluoromethyl radical; a benzhydryl; or a benzhydrylmethyl; R 2 represents a hydrogen atom or a (C 1 -C 3 )alkyl; R 3 represents a phenyl which is unsubstituted or mono-, di- or trisubstituted with substituents independently chosen from a halogen atom, a (C 1 -C 4 )alkyl, a (C 1 -C 4 )alkoxy, a trifluoromethyl radical or an S(O) n Alk group; R 4 represents a phenyl which is unsubstituted or mono-, di- or trisubstituted with substituents independently chosen from a halogen atom, a (C 1 -C 4 )alkyl, a (C 1 -C 4 )alkoxy, a trifluoromethyl radical or an S(O) n Alk group; n represents 0,1 or 2; and Alk represents a (C 1 -C 4 )alkyl.