Patent ID: 8410099

Claim:
A compound of formula (I): wherein: R 1 represents: a phenyl which is unsubstituted or substituted one or more times by substituents chosen independently from a halogen atom, an Alk group, an OAlk group, a cyano, an —NH SO 2 Alk group and an —SO 2 Alk group; a naphthyl which is unsubstituted or substituted one or more times by substituents chosen independently from a halogen atom, an Alk group and an OAlk group; a pyridyl which is unsubstituted or substituted one or more times by substituents chosen independently from a halogen atom, an Alk group and an OAlk group; a 1-benzothienyl which is unsubstituted or substituted one or more times by substituents chosen independently from a halogen atom, an Alk group and an OAlk group; or a 1,3-benzodioxolyl which is unsubstituted or substituted one or more times by substituents chosen independently from a halogen atom, an Alk group and an OAlk group; R 2 represents: a phenyl which is unsubstituted or substituted once or twice by substituents chosen independently from a halogen atom, an Alk group and a cyano; or a thienyl or a pyridyl, each of which is substituted by a halogen atom or an Alk group; R 3 represents a hydrogen atom, a halogen atom, an Alk group or an OAlk group; and Alk represents a (C 1 -C 4 )alkyl which is unsubstituted or substituted one or more times by a fluorine atom; or an acid addition salt thereof.