4-HO-2-OXO-1-PROPYL-1,2-DIHYDRO-QUINOLINE-3-CARBOXYLIC ACID N'-ACETYL-HYDRAZIDE

4-HO-2-OXO-1,2-DIHYDRO-QUINOLINE-3-CARBOXYLIC ACID (PYRIDIN-4-YLMETHYL)-AMIDE

4-HO-6,7-DIMETHOXY-1-(TRIMETHOXY-PH)-NAPHTHALENE-2-CARBOXYLIC ACID TERT-BU ESTER

4-Hydrazino-7H-pyrrolo[2,3-d]pyrimidine

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

4-HYDROXY-1-OCTYL-2-OXO-N-(4-PYRIDINYL)-1,2-DIHYDRO-3-QUINOLINECARBOXAMIDE

4-HYDROXY-2-(TRIPHENYLPHOSPHONIO)BENZENOLATE

4-Hydroxy-2-methylquinoline-6-carboxylic acid ethyl ester

4-HYDROXY-2-OXO-1,2-DIHYDRO-QUINOLINE-3-CARBOXYLIC ACID 2-CHLORO-BENZYLAMIDE

4-HYDROXY-4'-METHOXYBENZOPHENONE

4-Hydroxy-5-methoxy-2-pyridinecarboxylic acid hydrate

4-hydroxy-6-methyl-2H-pyrano[3,2-c]quinoline-2,5(6H)-dione

4-Hydroxy-8-methoxyquinoline-3-carboxylic acid ethyl ester

4-HYDROXY-N'-(2-HYDROXY-3-METHOXYBENZYLIDENE)BENZOHYDRAZIDE

4-hydroxy-N-phenyl-2-quinolinecarboxamide