4-HO-2-OXO-1,2-DIHYDRO-QUINOLINE-3-CARBOXYLIC ACID (2-SULFAMOYL-PHENYL)-AMIDE

4-HO-5-OXO-1,2-DIPHENYL-2,5-DIHYDRO-1H-PYRROLE-3-CARBOXYLIC ACID ETHYL ESTER

4-Hydrazino-6-(trifluoromethyl)quinoline

4-HYDROXY-1-ISOBUTYL-N-(2-METHYLPHENYL)-2-OXO-1,2-DIHYDRO-3-QUINOLINECARBOXAMIDE

4-HYDROXY-1-METHYL-2-OXO-1,2-DIHYDRO-QUINOLINE-3-CARBOXYLIC ACID PENTYLAMIDE

4-HYDROXY-2-(4-METHOXYPHENYL)-1-BENZOPYRYLIUM PERCHLORATE

4-Hydroxy-2-methyl-N-(4-methyl-1,3-thiazol-2-yl)-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxide

4-HYDROXY-2-OXO-1,2-DIHYDRO-QUINOLINE-3-CARBOXYLIC ACID (3-CHLORO-PROPYL)-AMIDE

4-HYDROXY-2-OXO-1,2-DIHYDRO-QUINOLINE-3-CARBOXYLIC ACID N'-HEXANOYL-HYDRAZIDE

4-HYDROXY-5-IODO-2,6-DIMETHYL-NICOTINIC ACID

4-HYDROXY-6-METHOXY-2H-BENZO[B][1,4]OXAZIN-3(4H)-ONE

4-Hydroxy-8-methoxy-2-methylquinoline

4-HYDROXY-BENZOIC ACID ANTHRACEN-9-YLMETHYLENE-HYDRAZIDE

4-HYDROXY-N-(4-HYDROXY-2-OXO-1,2-DIHYDRO-3-QUINOLINYL)-2-OXO-1-PROPYL-1,2-DIHYDRO-3-QUINOLINECARBOXAMIDE

4-Hydroxybenzenesulfonamide