4-methyl-5,6-dihydro-2H-triazolo[4,5-d]pyrimidin-7-one

4-methyl-2-(pyridine-3-carbonylamino)pentanoic acid

4-(1H-benzimidazol-2-ylmethoxy)benzohydrazide

4-phenyl-[1,2,4]triazino[4,3-b]indazole

4-methyl-[1,2,4]triazino[4,3-b]indazole

4-morpholin-4-yl-8-phenyl-3,4,5,6-tetrahydrooxathiino[5,6-g][1,3]benzothiazole 2,2-dioxide

4-[4-(dimethylamino)phenyl]-4-phenyl-2,3-dihydrophthalazin-1-one

4-amino-2-[[2-chloroethyl(nitroso)carbamoyl]amino]-4-oxobutanoic acid

4-hydroxy-3,3-diphenylbenzo[f]quinoline-1-carbonitrile

4-amino-5-(4-nitrophenyl)-1,2-thiazole-3-carboxamide

4-(hydroxyamino)-5-nitroso-1,3-diphenylimidazole-2-thione

4-benzylidene-2-(2-bromophenyl)-1,3-oxazol-5-one

4-(10H-phenothiazin-3-ylmethyl)morpholine

4,8-bis(benzenesulfonyl)-2,6-dimethylideneoctan-1-ol

4-azatricyclo[4.3.1.13,8]undecan-3-ol

4-[[3-(4,6-diamino-2,2-dimethyl-1,3,5-triazin-1-yl)phenyl]methylamino]benzenesulfonamide;ethanesulfonic acid

4-(6-chloro-2,2-dimethyl-3a,5,6,6a-tetrahydrofuro[2,3-d][1,3]dioxol-5-yl)-1,3,2-dioxathiolane 2-oxide

4-ethyl-5-methyl-N'-[2-[(5-methyl-1H-imidazol-4-yl)methylsulfanyl]ethyl]-3-oxo-1H-pyrazole-2-carboximidamide

4-(Dichloromethyl)-2-pyridinecarboxamide

4-(phenanthro[9,10-d]imidazol-2-ylideneamino)naphthalen-1-ol

4-tert-butyl-N'-hydroxybenzenecarboximidamide

4-hydroxy-1,2,2,6,6-pentamethylpiperidine-4-carboxylic acid

4-methyl-8,12-dimethylidene-3,14-dioxatricyclo[9.3.0.02,4]tetradecane-7,13-dione

4-amino-N-(4-methoxyphenyl)-2-methylsulfanyl-1,3-thiazole-5-carboxamide

4-amino-2-methylsulfanyl-N-naphthalen-1-yl-1,3-thiazole-5-carboxamide

4-bromo-N-(2,4-dinitronaphthalen-1-yl)benzenesulfonamide

4-(3-nitrophenyl)-2,6-diphenyl-1,3-dihydro-1,2,4,5-tetrazine

4,6,7-trimethyl-1,4-dihydroquinazoline-8-carbonitrile

4-(5,7-dimethyl-4,6-dioxo-[1,2]oxazolo[3,4-d]pyrimidin-3-yl)butanoic acid

4,5-dimethoxy-10-azatetracyclo[8.6.1.02,7.013,17]heptadeca-1(16),2,4,6,13(17),14-hexaene

4-methyl-3,4-dihydro-2H-oxazino[3,2-b]quinazolin-10-one

4-nitro-1-(2,4,6-trinitrophenyl)imidazole

4-hydroxy-3-methyl-4-phenylthiolan-2-one

4-chloro-2-nitro-1-propan-2-ylsulfonylbenzene

4-(1-hydroxy-4-methyl-3-oxido-5-phenylimidazol-3-ium-2-yl)-N,N-dimethylaniline

4-[2-[2-(2-chloroethylsulfanyl)ethylimino]hydrazinyl]benzonitrile

4-methylbenzenesulfonic acid;N-(3-morpholin-4-yl-1-oxo-1-phenylpropan-2-yl)acetamide

4-[4-(2-bromoethoxy)-3-nitrophenyl]-7-methoxy-2,2-dimethyl-3-phenylchromene

4-oxo-7-(2-phenylethoxy)-1H-quinoline-3-carboxylic acid

4-(2-phenylethyl)benzo[h]quinoline

4,9-dihydro-3H-pyrano[3,4-b]indol-1-one

4-(2-methoxyphenyl)-2,6-dioxopiperidine-3,5-dicarbonitrile

4-(2-chloroethyl)-2-(2-hydroxyphenyl)-1,3,4-oxadiazin-5-one

4-[5-(2-nitroimidazol-1-yl)pentyl]morpholine

4-bromo-3,5,5-trimethyldioxolan-3-ol

4-(3,4-dimethoxyphenyl)butanoic acid

4-(2-phenoxycyclohexyl)morpholine

4-[[2-(4-hydroxy-3-methoxyphenyl)-3-(hydroxymethyl)-7-methoxy-2,3-dihydro-1-benzofuran-5-yl]methyl]-3-[(4-hydroxy-3-methoxyphenyl)methyl]oxolan-2-one

4-[(4,5-dimethyl-3-oxido-1,3-thiazol-3-ium-2-yl)diazenyl]-N,N-dimethylaniline

4,6,13,15-tetramethyl-9-phenyl-1,4,6,8,10,11,13,15-octazatetracyclo[8.7.0.02,7.012,17]heptadeca-2(7),8,12(17)-triene-3,5,14,16-tetrone

4-bromo-2-methoxy-6-methyl-2H-pyran-5-one

4-butyl-4-oxidomorpholin-4-ium

4-nitro-1-[4-[2-[4-[(4-nitro-9-oxo-10H-acridin-1-yl)oxy]phenyl]ethyl]phenoxy]-10H-acridin-9-one

4-(dimethylamino)-3,3-bis(ethylsulfanyl)-5,6,7,8,9,10-hexahydro-4H-cycloocta[b]pyran-2-one

4-butoxyquinolin-2-amine

4-bromo-5,5-dimethyloxathiole 2,2-dioxide

4-methyl-8,12-dimethylidene-7-methylperoxy-3,14-dioxatricyclo[9.3.0.02,4]tetradecan-13-one

4-(anthracen-2-yldiazenyl)-N,N-dimethylaniline

4-[(3-chloroacridin-9-yl)amino]-N-(4-methylpyrimidin-2-yl)benzenesulfonamide

4-(4-chlorophenyl)-3,5-bis(methylsulfanyl)-1,2-thiazole

4-[(1-heptyl-4H-pyridin-3-yl)sulfonyl]morpholine

4-methyl-4-(naphthalen-2-ylsulfanylmethyl)azetidin-2-one

4-amino-2-[(4-sulfamoylphenyl)diazenyl]-1H-imidazole-5-carboxamide

4-[2-(2-bromoethylimino)hydrazinyl]benzonitrile

4-amino-2-[(4-chlorophenyl)diazenyl]-1H-imidazole-5-carboxamide

4-[2-[4,6-bis[2-(3,5-ditert-butyl-4-hydroxyphenyl)ethyl]-1,3,5-triazin-2-yl]ethyl]-2,6-ditert-butylphenol