Patent ID: 6878723

Claim:
A compound corresponding to the following formula (I): wherein n 1 and n 3 are equal to 0 or 1, with (n 1 +n 3 ) equal to 0 or 1 n 2 varies from 0 to 10 n 4 varies from 0 to 4 A 1 is selected from the following groups: a) cycloalkyl b) phenyl which is unsubstituted or which is mono- or polysubstituted with substituents selected from halogen atoms and CF 3 , lower alkyl and lower alkoxy groups, c) 2-, 3-or 4-pyridyl d) 2- or 3-thienyl e) 2- or 3-furyl f) 2-, 3- or 4-piperidyl g) cycloalkenyl A 2 is selected from the following groups: a) cycloalkylene b) phenylene which is unsubstituted or which is mono- or polysubstituted with substituents from halogen atoms, CF 3 , lower alkyl and lower alkoxy groups, R 2 and R 3 are independently selected from the following groups: i) a hydrogen atom ii) a lower alkyl group iii) a lower alkyl group substituted with a halogen atom iv) a CF 3 group v) a halogen atom.