Patent ID: 6225275
Filing Date: 2001-05-01
Classification: C11D,C12N,D21C

Abstract:
Process for enhancing the activity of an oxidoreductase, comprising adding to the enzyme, as an enhancer for the activity of said enzyme, a compound having the formula: ##STR4##wherein R.sup.1 -R.sup.4 may each independently represent hydrogen, hydroxy, halogen, nitroso, formyl, carboxyl, and esters and salts thereof, carbamoyl, sulfo, and esters and salts hereof, sulfamoyl, nitro, amino, phenyl, C.sub.1 -C.sub.20 alkyl, C.sub.1 -C.sub.8 alkoxy, carbonyl-C.sub.1 -C.sub.6 -alkoxy, aryl-C.sub.1 -C.sub.6 -alkyl, whereby:the carbamoyl, sulfamoyl and amino groups may be unsubstituted or substituted once or twice with hydroxy, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, in which C.sub.1 -C.sub.6 -group may be saturated or unsaturated, branched or unbranched and may be substituted once or twice with halogen, nitroso, hydroxy, formyl, carboxy, and esters and salts thereof, carbamoyl, sulfo, and esters and salts hereof, sulfamoyl; andthe phenyl group may be substituted with once or twice with halogen, nitroso, hydroxy, formyl, carboxy, and esters and salts thereof, carbamoyl, sulfo, and esters and salts hereof, sulfamoyl; andthe C.sub.1 -C.sub.20 alkyl, C.sub.1 -C.sub.6 -alkoxy, carbonyl-C.sub.1 -C.sub.6 -alkoxy, and aryl-C.sub.1 -C.sub.6 -alkyl groups may be saturated or unsaturated, branched or unbranched, and may be substituted with halogen, hydroxy, nitroso, formyl, carboxy, and esters and salts thereof, carbamoyl, sulfo, and esters and salts thereof, sulfamoyl, nitro, amino, phenyl, aminoalkyl, piperidino, piperazinyl, pyrrolidin-2-yl, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 -alkoxy;whereby two of the groups R.sup.1 -R.sup.4 may be linked together by any group, andA is selected from the group consisting of a six-membered ring containing at least one nitrogen atom and a sulphur containing five-membered ring which may be optionally substituted with a hydroxy group.