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

4-(2,4,5-TRIMETHOXYBENZYLIDENE)-2-PHENYL-2-OXAZOLIN-5-ONE

4-(3-ACETOXYBENZYLIDENE)-2-METHYL-5-OXAZOLIDINONE

4-(3-BROMOBENZYLIDENEAMINO)-4H-1,2,4-TRIAZOLE

4-(3,4-DIMETHOXY-BENZOYL)-DIHYDRO-FURAN-2-ONE

4-(4-(2-(4-MEO-PH)-VINYL)-PHENYL)-2,6-DIPHENYL-PYRANYLIUM, TETRAFLUORO BORATE

4-(4-CHLOROPHENYL)-4-HYDROXY-2-IMINOTHIAZOLIDINE HYDROBROMIDE

4-(4-SULFOPHENOXY)BENZOIC ACID, MAGNESIUM SALT

4-(ACETAMIDOPHENYLSULFONYL)ACETONITRILE

4-(BENZYLSULFONAMIDO)-BENZOIC ACID

4-(BUTOXYCARBONYL)PHENYL N-PHENYLCARBAMATE

4-(DIMETHYLAMINO)-4'-NITRO-2-(TRIPHENYLSTANNYL)AZOBENZENE

4-(METHYLTHIO)PHENYL N-(1-NAPHTHYL)CARBAMATE

4-(MORPHOLINOIMINOMETHYL)RESORCINOL

4-(N-(4-METHOXYPHENYL)THIOCARBAMOYL)MORPHOLINE