Patent ID: 8859819

Claim:
Compound of generic formula (I) in which: X=S, SO or SO 2 and; one of the radicals R 1 and R 2 represents a hydrogen atom and the other a radical selected from: a C 1 to C 18 linear or branched alkyl, optionally substituted by one or more halogen atoms, a C 2 to C 18 linear or branched alkenyl, optionally substituted by one or more halogen atoms, or an aralkyl, optionally substituted by one or more C 1 to C 6 alkoxy groups, or COR 3 or CONHR 3 , but not simultaneously, wherein R 3 represents a radical selected from: a C 1 to C 18 linear or branched alkyl, optionally substituted by one or more halogen atoms, a C 2 to C 18 linear or branched alkenyl, optionally substituted by one or more halogen atoms, an aralkyl, optionally substituted by one or more C 1 to C 6 alkoxy groups, an aralkenyl, optionally substituted by one or more C 1 to C 6 alkoxy groups and/or one or more OH groups, or an aryl radical, optionally substituted by one or more C 1 to C 6 alkoxy groups.