| abstract |
A compound of formula (I): wherein R1 and R2 independently represent hydrogen, C1-6 alkyl with straight or branched chain optionally substituted with one or more C1-6 alkoxycarbonyl groups, aryloyl (C1-6 alkoxycarbonyl) -alkyl C1-6, or R1 and R2 may form a heterocyclic ring with the adjacent nitrogen atom, which may be an optionally substituted saturated or unsaturated monocyclic or bicyclic ring that may additionally contain heteroatoms selected from O, N or S, or C2-7 alkenyl with 1 to 3 double bonds, or mono-, bi- or tricyclic aryl optionally substituted with one or more C1-6 alkoxy, C1-6 trifluoroalkoxy, C1-6 alkoxycarbonyl, C1-6 alkanoyl, aryl, C1-6 alkylthio, halogen or cyano, or an optionally substituted mono-, bi- or tricyclic cycloalkyl group, or aroyl group; X represents an oxygen or sulfur atom; n is an integer from 1 to 2, and / or geometric isomers and / or stereoisomers and / or diastereomers and / or salts and / or hydrates and / or solvates of the same. |