abstract |
The invention concerns a compound of formula (I)wherein R, R<sup>1</sup> and R<sup>2</sup> are independently selected form the group consisting of:- a hydrogen atom,- a halogen atom,- an alkyl group, linear, cyclic or branched, saturated or unsaturated, possibly substituted, comprising from 1 to 10 carbon atoms,- an acyl group comprising from 1 to 10 carbon atoms,- a carboxyl group,- an amido group comprising from 1 to 10 carbon atoms, and- an imino group, possibly substituted by an alkyl group, linear, cyclic or branched, saturated or unsaturated, andwherein R<sup>3</sup>, R<sup>4</sup>, R<sup>5</sup> and R<sup>6</sup> are independently selected form the group consisting of:- a hydrogen atom,- a halogen atom,- a hydroxyl group,- an alkyl group, linear, cyclic or branched, saturated or unsaturated, possibly substituted, comprising from 1 to 10 carbon atoms,- an alkoxy group comprising from 1 to 10 carbon atoms,- an acyl group comprising from 1 to 10 carbon atoms,- a carboxyl group, and- a cyano group. |