4-HYDROXYCYCLOHEXANONE

4-I-N-(2,2,2-TRICHLORO-1-(3-(2-MEO-5-NITRO-PHENYL)-THIOUREIDO)-ETHYL)-BENZAMIDE

4-FLUORO-N-(3-NITROBENZYLIDENE)ANILINE

4-FLUOROBENZALDEHYDE N-PHENYLTHIOSEMICARBAZONE

4-FLUOROBENZYL N-(5-CHLORO-2-METHOXYPHENYL)CARBAMATE

4-FLUOROPHENYL N-(2,5-DIMETHOXYPHENYL)CARBAMATE

4-FLUOROSULFONYL-N-HEXADECYLBENZAMIDE

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

4-HO-6,7-DIMETHOXY-1-(3,4,5-TRIMETHOXY-PHENYL)-NAPHTHALENE-2-CARBOXYLIC ACID

4-Hydroxy-1-(2-methoxyphenyl)-6-oxo-1,6-dihydropyridazine-3-carboxylic acid

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

4-HYDROXY-2-(2-HYDROXYBENZYLIDENEHYDRAZINO)-6-METHYLPYRIMIDINE

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

4-HYDROXY-2-OXO-N-(4-OXO-2-PENTYL-3(4H)-QUINAZOLINYL)-1-PROPYL-1,2-DIHYDRO-3-QUINOLINECARBOXAMIDE

4-HYDROXY-2,6-DIMETHYL-NICOTINAMIDE