4-(ethoxymethylidene)-2-naphthalen-1-yl-1,3-oxazol-5-one

4-[[2,6-dihydroxy-3,3-dimethyl-5-(2-methylpropanoyl)-4-oxocyclohexa-1,5-dien-1-yl]methyl]-3,5-dihydroxy-6,6-dimethyl-2-(2-methylpropanoyl)cyclohexa-2,4-dien-1-one

4-methoxy-9-[6-(4-methoxyacridin-9-yl)sulfanylhexylsulfanyl]acridine

4,6-dibromo-3-methylsulfanyl-2-methylsulfinyl-1H-indole

4-(benzenesulfonyl)-2-methyl-5-methylidene-3-phenyl-1,2-oxazolidine

4,5-Dihydro-2-(4-methoxyphenyl)-4,4-dimethyloxazole

4-amino-5-fluoro-1-[5-(hydroxymethyl)oxolan-2-yl]pyrimidin-2-one

4,5-dihydro-3H-2,1-benzoxazepin-1-yl(phenyl)methanone

4-ethyl-5-[(3-ethyl-5-formyl-4-methyl-1H-pyrrol-2-yl)methyl]-3-methyl-1H-pyrrole-2-carbaldehyde

4-methoxy-5-(methoxymethylidene)furan-2-one

4-methoxy-N-[(3,4,5-trimethoxyphenyl)methyl]aniline

4-(naphthalen-2-ylsulfonylamino)butanoic acid

4-[(2-methyl-5-oxo-1,3-oxazol-4-ylidene)methyl]benzonitrile

4-methyl-2,3-dihydrochromene-4-carboxylic acid

4-(2-hydroxy-5-methoxyphenyl)-4-oxobutanoic acid

4-methyl-2-phenylsulfanyloxane

4-[[(4-Methoxyphenyl)sulfonyl]methyl]benzoic acid

4-tert-butyl-2-[[5-tert-butyl-3-[(5-tert-butyl-2-hydroxy-3-methylphenyl)methyl]-2-hydroxyphenyl]methyl]-6-methylphenol

4-chloro-N-prop-2-enoxybenzamide

4-[2-[(3,4-dioxonaphthalen-1-yl)amino]phenyl]-N-(3-nitrophenyl)-2,4-dioxobutanamide

4-ethyl-N-[(3,4,5-trimethoxyphenyl)methyl]aniline

4-azidochromen-2-one

4-Methoxy-7-methyl-5-(1-methylethyl)-2H-naphtho[1,8-bc]furan-3-ol

4-(2,4-ditert-butylphenoxy)benzene-1,2-dicarbonitrile

4-nitro-N-phenylsulfanylaniline

4-(3-Aminopropyl)-1,2,5-oxadiazole-3-carboxylic acid

4-oxatricyclo[4.3.0.03,7]nonane-5,9-dione

4-(2-sulfanylidene-1,3-benzothiazol-3-yl)butan-2-one

4-prop-1-en-2-ylcyclohexane-1-carboxylic acid

4,5-diazapentacyclo[6.6.6.02,7.09,14.015,20]icosa-9,11,13,15,17,19-hexaene-3,6-dione

4-(2,4-dinitrophenyl)sulfanyl-5,5-dimethyl-2-phenyl-1,2λ5-oxaphosphole 2-oxide

4-oxo-2-phenyl-1H-quinoline-3-carbonitrile

4-chloro-N-[5-(4-chloroanilino)-1H-1,2,4-triazol-3-yl]-5-methyl-2-sulfanylbenzenesulfonamide

4-(4-chloro-1-morpholin-4-yl-2,4-dinitrobuta-1,3-dienyl)morpholine

4-amino-3-benzyl-1H-1,2,4-triazol-5-one

4-cyclopropyl-3-methyl-1H-1,2,4-triazol-5-one

4-[(4-aminophenyl)sulfanylmethyl]benzoic acid

4-bromo-2-(2-sulfanylethyliminomethyl)phenol

4-bromo-3-butyl-5-(dibromomethylidene)furan-2-one

4,5-dihydro-[1,2,4]triazolo[3,4-d][1,5]benzothiazepine

4-[3-(1H-pyrazol-4-yl)phenyl]-1H-pyrazole

4-[(2-hydroxyphenyl)methylideneamino]benzenesulfonic acid

4,5-difluoro-3-thiatricyclo[5.2.1.02,6]deca-2(6),4-diene

4-chloro-1-(4-chloro-2-nitrophenyl)sulfonyl-2-nitrobenzene

4,4,7,7-tetranitro-2-phenyl-5,6-dihydrobenzotriazole

4-[2,7-dimethyl-7-(4-oxo-1,3-diazetidin-2-yl)octan-2-yl]-1,3-diazetidin-2-one

4,4,5-trifluoro-3-thiatricyclo[5.2.1.02,6]dec-2(6)-ene

4,6,8-trichloro-3-(2-chloroethyl)-2-methylquinoline

4-chloro-N-(3-oxo-1λ3,2-benziodoxol-1-yl)benzamide

4,4-dichloro-2,3-diphenylcyclobut-2-en-1-one

4-(3,4-dicarboxyphenyl)sulfonylphthalic acid

4-(3,5-dioxo-1,2,4-triazin-2-yl)but-2-enyl acetate

4-chloro-N-(4-methoxyphenyl)benzenesulfinamide

4-nitro-N-(phenyl-λ3-iodanylidene)benzenesulfonamide

4-chloro-6-(4-chlorophenoxy)pyrimidin-2-amine

4-[(4-hydroxyphenyl)diazenyl]benzenesulfonamide

4-methyl-N-(4-methylpyridin-2-yl)benzenesulfonamide

4-(2-methoxyethoxy)-2-phenylquinazoline

4-N-benzo[g]quinolin-4-yl-1-N,1-N-diethylpentane-1,4-diamine

4-methoxy-N-(2-phenyl-1,3-benzoxazol-5-yl)benzamide

4-(4-fluoro-1,3-benzothiazol-2-yl)-2-methylaniline

4-(2-phenyl-2,3-dihydro-1H-1,5-benzodiazepin-4-yl)morpholine

4′-Ethyl-7′,8′-dihydro-4′-hydroxyspiro[1,3-dioxolane-2,6′(3′H)-[1H]pyrano[3,4-f]indolizine]-3′,10′(4′H)-dione

4-phenyl-1H-quinolin-2-one

4-iodocubane-1-carboxylic acid

4-[(4-methoxyphenyl)methylidene]-5-methyl-2-phenylpyrazol-3-one