| abstract |
A subject of the invention is in particular the products of general formula (I): (CF DRAWING IN BOPI) in which: Z1 and Z2, which are identical or different, represent cyano, nitro, halogen, trifluoromethyl or esterified or salified free carboxy, the -AB group - is chosen from the radicals (CF DRAWING IN BOPI) in which X represents oxygen or sulfur and R3 is chosen from the following radicals: - hydrogen, - alkyl, alkenyl, alkynyl, aryl or aryl-alkyl, these radicals being optionally substituted; Y represents oxygen or sulfur or NH, R4 and R5 which are identical or different in particular represent alkyl substituted by hydroxyl, with the exception of products in which R4 and R5, which are identical or different, represent a hydrogen atom or an alkyl radical having from 1 to 12 carbon atoms optionally substituted by one or more halogen atoms. |