Patent ID: 7741363

Claim:
A compound of the formula (I): wherein: X represents an oxygen atom; R 1 represents a —N(R 7 )SO 2 R 8 ; R 2 represents a hydrogen atom or a (C 1 -C 4 )alkyl; R 3 represents: a (C 1 -C 6 )alkyl which is unsubstituted or substituted by: a naphthyl which is unsubstituted or substituted one or more times by substituents chosen independently from a halogen atom, a (C 1 -C 4 )alkyl, a (C 1 -C 4 )alkoxy or a trifluoromethyl radical; R 4 and R 5 each independently represent a hydrogen atom, a halogen atom, a (C 1 -C 4 )alkyl, a (C 1 -C 4 )alkoxy, a trifluoromethyl radical or a nitro; R 7 represents a hydrogen atom or a (C 1 -C 4 )alkyl; and R 8 represents a (C 1 -C 4 )alkyl or a trifluoromethyl radical; or a salt thereof.