4-(2-FUROYL)-3-HO-5-PHENYL-1-(3-PYRIDINYLMETHYL)-1,5-DIHYDRO-2H-PYRROL-2-ONE

4-(2-HYDROXYETHYLTHIO)-1,3-PHENYLENE-DIAMINE DIHYDROCHLORIDE

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

4-(2,4-DIMETHYL-BENZYL)-2,5-DIMETHYL-PYRIDINE

4-(2,5-DIMETHOXY-PHENYL)-2,6-DIMETHYL-1,4-DIHYDRO-PYRIDINE-3,5-DICARBONITRILE

4-(3,4-DIMETHOXYBENZYLIDENE)-2-PHENYL-1,3-OXAZOL-5(4H)-ONE

4-(4-BROMO-BENZOYLAMINO)-BENZOIC ACID ISOBUTYL ESTER

4-(4,4,5,5-TETRAMETHYL-(1,3)DIOXOLAN-2-YL)-PHENOL

4-(5A-METHOXY-8-OXO-5A,6,8A,9-TETRAHYDRO-8H-[1,3]DIOXOLO[4,5-G]FURO[3,4-B]CHROMEN-9-YL)-2,6-DIMETHOXYPHENYL ACETATE

4-(ACETYLAMINO)PHENYL DIMETHYLCARBAMATE

4-ALPHA,5-EPOXY-3,20-DIOXO-5-ALPHA-PREGNAN-11-ALPHA-YL ACETATE

4-AMINO-3-CHLOROPHENYL THIOCYANATE

4-BENZYLOXYMETHYL-2,6-DI-ME-1,4-2H-PYRIDINE-3,5-DICARBOXYLIC ACID DIMETHYL ESTER

4-BR-2-(2-((((4-METHYLPHENYL)SULFONYL)AMINO)AC)CARBOHYDRAZONOYL)PH 3-PH-ACRYLATE

4-BROMO-3-(4-METHOXY-PHENYLIMINO)-5-METHYL-1,3-DIHYDRO-INDOL-2-ONE