4-(2-CL-PH)-2-FURAN-2-YL-1,9B-DIHYDRO-5-OXA-3,3A-DIAZA-CYCLOPENTA(A)NAPHTHALENE

4-(2-FUROYL)-3-HYDROXY-5-(3-PHENOXYPHENYL)-1-(TETRAHYDRO-2-FURANYLMETHYL)-1,5-DIHYDRO-2H-PYRROL-2-ONE

4-(2-HYDROXY-3-METHOXYBENZYLIDENEAMINO)ANTIPYRINE

4-(2-Hydroxyethyl)-1-isopropyl-3,3-diphenyl-2-pyrrolidinone

4-(2-MEO-5-NITRO-PH)-6-ME-2-OXO-1,2,3,4-4H-PYRIMIDINE-5-CARBOXYLIC ACID ET ESTER

4-(2-Methoxy-5-methylphenyl)pyrimidin-2-amine

4-(2,2,2-TRI-CL-1-HO-ETHYLAMINO)-6-TRICHLOROMETHYL-5,6-2H-(1,3,5)OXADIAZIN-2-ONE

4-(2,3-DIMETHOXY-PH)-2,6-DI-ME-1,4-2H-PYRIDINE-3,5-DICARBOXYLIC ACID DI-ET ESTER

4-(2,4-DI-CL-PH)2,6-DIMETHYL-1,4-2H-PYRIDINE-3,5-DICARBOXYLIC ACID DIETHYL ESTER

4-(2,4-DICHLORO-PHENOXY)-N-O-TOLYL-BUTYRAMIDE

4-(2,4-Dichlorophenyl)-3-buten-2-one

4-(2,4-DIMETHOXY-BENZYLIDENE)-5-METHYL-2-PHENYL-2,4-DIHYDRO-PYRAZOL-3-ONE

4-(2,4-DITERT-PENTYLPHENOXY)-N-(4-{3-(4-MORPHOLINYL)-5-OXO-4-[(1-PHENYL-1H-TETRAAZOL-5-YL)SULFANYL]-4,5-DIHYDRO-1H-PYRAZOL-1-YL}PHENYL)BUTANAMIDE

4-(2,5-DICHLOROPHENYLAZO)-RESORCINOL

4-(2,5-DIMETHYL-PHENYL)-PENTANOIC ACID