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    —— 4,5α-epoxy-6-oxo-14-hydroxy-3-<(2-carbomethoxyallyl)oxy>-17-(cyclopropylmethyl)morphinan —— C25H29NO6
    4,5α-epoxy-6-oxo-14-hydroxy-3-<(2-carbomethoxyallyl)oxy>-17-(cyclopropylmethyl)morphinan
    —— 4-(4-methoxyphenyl)-2-methylquinoline —— C17H15NO
    4-(4-methoxyphenyl)-2-methylquinoline
    —— 4-methoxybenzoic acid N'-(4-diethylaminobenzylidene)-N-(4-methylbenzyl)hydrazide —— C27H31N3O2
    4-methoxybenzoic acid N'-(4-diethylaminobenzylidene)-N-(4-methylbenzyl)hydrazide
    —— 4-methoxybenzoic acid (4-diethylaminobenzylidene)hydrazide —— C19H23N3O2
    4-methoxybenzoic acid (4-diethylaminobenzylidene)hydrazide
    —— (4R,7aR,12bS)-9-(benzyloxy)-3-(cyclopropylmethyl)-7-methoxy-2,3,4,7a-tetrahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinoline —— C28H29NO3
    (4R,7aR,12bS)-9-(benzyloxy)-3-(cyclopropylmethyl)-7-methoxy-2,3,4,7a-tetrahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinoline
    —— 4-hydroxy-2-methyl-N-[3-(trifluoromethyl)phenyl]-2H-thieno[2,3-e][1,2]thiazine-3-carboxamide 1,1-dioxide —— C15H11F3N2O4S2
    4-hydroxy-2-methyl-N-[3-(trifluoromethyl)phenyl]-2H-thieno[2,3-e][1,2]thiazine-3-carboxamide 1,1-dioxide
    —— 4'-(triphenylphosphonio)butyl-3β-dichloroacetoxylup-20(29)-en-28-oate bromide —— Br*C54H70Cl2O4P
    4'-(triphenylphosphonio)butyl-3β-dichloroacetoxylup-20(29)-en-28-oate bromide
    —— 4-hydroxy-2-methyl-N-[4-(trifluoromethyl)phenyl]-2H-thieno[2,3-e][1,2]thiazine-3-carboxamide 1,1-dioxide —— C15H11F3N2O4S2
    4-hydroxy-2-methyl-N-[4-(trifluoromethyl)phenyl]-2H-thieno[2,3-e][1,2]thiazine-3-carboxamide 1,1-dioxide
    —— 4-hydroxy-2-methyl-2H-thieno[2,3-e][1,2]thiazine-3-carboxylic acid 1,1-dioxide —— C8H7NO5S2
    4-hydroxy-2-methyl-2H-thieno[2,3-e][1,2]thiazine-3-carboxylic acid 1,1-dioxide
    —— 4-methyl-1-phenyl-1,4-dihydropyrazolo[4,3-c]thieno[2,3-e][1,2]thiazin-3(2H)-one 5,5-dioxide —— C14H11N3O3S2
    4-methyl-1-phenyl-1,4-dihydropyrazolo[4,3-c]thieno[2,3-e][1,2]thiazin-3(2H)-one 5,5-dioxide
    —— 4-(2,5-dimethoxyphenyl)but-3-en-2-one 100117-46-2 C12H14O3
    4-(2,5-dimethoxyphenyl)but-3-en-2-one
    —— 4-methoxy-2-methyl-N-(pyridin-2-yl)-2H-thieno[2,3-e][1,2]thiazine-3-carboxamide 1,1-dioxide —— C14H13N3O4S2
    4-methoxy-2-methyl-N-(pyridin-2-yl)-2H-thieno[2,3-e][1,2]thiazine-3-carboxamide 1,1-dioxide
    —— (4S)-4-hydroxy-4-(1'-naphthyl)-butan-2-one —— C14H14O2
    (4S)-4-hydroxy-4-(1'-naphthyl)-butan-2-one
    —— 4-[(acetylamino)methyl]-2-methoxyphenyl-4-methoxy-2-nitrobenzyl carbonate —— C19H20N2O8
    4-[(acetylamino)methyl]-2-methoxyphenyl-4-methoxy-2-nitrobenzyl carbonate
    —— 4-[(acetylamino)methyl]-2-methoxyphenyl-4,5-dimethoxy-2-nitrobenzyl carbonate —— C20H22N2O9
    4-[(acetylamino)methyl]-2-methoxyphenyl-4,5-dimethoxy-2-nitrobenzyl carbonate
    —— 4-phenyl-5-(4-methylthiophenyl)-1H-imidazole —— C16H14N2S
    4-phenyl-5-(4-methylthiophenyl)-1H-imidazole
    —— 4-(4-ethoxyphenyl)-5-(4-fluorophenyl)imidazole —— C17H15FN2O
    4-(4-ethoxyphenyl)-5-(4-fluorophenyl)imidazole
    —— 4-(4-ethoxyphenyl)-5-(4-fluorophenyl)-2-nitroimidazole —— C17H14FN3O3
    4-(4-ethoxyphenyl)-5-(4-fluorophenyl)-2-nitroimidazole
    —— (4E,8E,12E,16E)-2-((4-hydroxy-3-methoxybenzyl)amino)-2-oxoethyl 4,8,13,17,21-pentamethyldocosa-4,8,12,16,20-pentaenoate —— C37H55NO5
    (4E,8E,12E,16E)-2-((4-hydroxy-3-methoxybenzyl)amino)-2-oxoethyl 4,8,13,17,21-pentamethyldocosa-4,8,12,16,20-pentaenoate
    —— 4-(3,4-dichlorophenyl)-5-phenylimidazole —— C15H10Cl2N2
    4-(3,4-dichlorophenyl)-5-phenylimidazole
    —— 4-chloro-5-(3-fluorophenylsulfonyl)-1,2-benzenediol —— C12H8ClFO4S
    4-chloro-5-(3-fluorophenylsulfonyl)-1,2-benzenediol
    —— 4-chloro-5-(3,5-dichloro-phenylsulfonyl)-1,2-benzenediol —— C12H7Cl3O4S
    4-chloro-5-(3,5-dichloro-phenylsulfonyl)-1,2-benzenediol
    —— 4-(3,5-dichlorobenzenesulfonyl)-5-methyl-1,2-benzenediol —— C13H10Cl2O4S
    4-(3,5-dichlorobenzenesulfonyl)-5-methyl-1,2-benzenediol
    —— 4-[([1-(2,3-dihydrobenzofuran-5-yl)ethyl]{4-[2-(2,5-dioxopyrrolidin-1-yl)ethoxy]-3-methoxybenzyl}amino)methyl]bicyclo[2.2.2]octane-1-carboxylic acid —— C34H42N2O7
    4-[([1-(2,3-dihydrobenzofuran-5-yl)ethyl]{4-[2-(2,5-dioxopyrrolidin-1-yl)ethoxy]-3-methoxybenzyl}amino)methyl]bicyclo[2.2.2]octane-1-carboxylic acid
    —— 4-[([1-(2,3-dihydrobenzofuran-5-yl)ethyl]{4-[2-(2,5-dioxopyrrolidin-1-yl)ethoxy]-3-methoxybenzyl}amino)methyl]benzoic acid —— C32H34N2O7
    4-[([1-(2,3-dihydrobenzofuran-5-yl)ethyl]{4-[2-(2,5-dioxopyrrolidin-1-yl)ethoxy]-3-methoxybenzyl}amino)methyl]benzoic acid
    —— (4S)-4-(4-fluorophenyl)-4-hydroxybutan-2-one —— C10H11FO2
    (4S)-4-(4-fluorophenyl)-4-hydroxybutan-2-one
    —— 4-(2-Azidoethoxy)-3-methoxy-benzylamine Trifluoroacetate —— C2HF3O2*C10H14N4O2
    4-(2-Azidoethoxy)-3-methoxy-benzylamine Trifluoroacetate
    —— 4-hydroxybenzoic acid N-(4-hydroxy-3-methoxybenzyl)amide —— C15H15NO4
    4-hydroxybenzoic acid N-(4-hydroxy-3-methoxybenzyl)amide
    —— 4,4-dicyclohexyl-7-pyrrol-1-yl-4H-benzo[1,3]dioxine-2-carboxylic acid —— C25H31NO4
    4,4-dicyclohexyl-7-pyrrol-1-yl-4H-benzo[1,3]dioxine-2-carboxylic acid
    —— 4-methyl-1H-benzimidazole-2-carbaldehyde —— C9H8N2O
    4-methyl-1H-benzimidazole-2-carbaldehyde
    —— 4,5-difluoro-1H-benzimidazole-2-carbaldehyde —— C8H4F2N2O
    4,5-difluoro-1H-benzimidazole-2-carbaldehyde
    —— (4R)-4-(4-methoxyphenyl)-5-nitropentan-2-one —— C12H15NO4
    (4R)-4-(4-methoxyphenyl)-5-nitropentan-2-one
    —— 4-amino-7-(3-(tert-butyldimethylsilyloxy)propyl)-5-p-tolyl-7H-pyrrolo[2,3-d]pyrimidine-6-carbaldehyde —— C23H32N4O2Si
    4-amino-7-(3-(tert-butyldimethylsilyloxy)propyl)-5-p-tolyl-7H-pyrrolo[2,3-d]pyrimidine-6-carbaldehyde
    —— (4S)-4-hydroxy-4-(2-nitrophenyl)-butan-2-one —— C10H11NO4
    (4S)-4-hydroxy-4-(2-nitrophenyl)-butan-2-one
    —— 4'-methoxy-2-nitrosobenzophenone —— C14H11NO3
    4'-methoxy-2-nitrosobenzophenone
    —— 4-(4,4-difluoro-1,3,5,7-tetramethyl-4-bora-3a,4a-diaza-s-indacene-8-yl)-butyric acid —— C17H21BF2N2O2
    4-(4,4-difluoro-1,3,5,7-tetramethyl-4-bora-3a,4a-diaza-s-indacene-8-yl)-butyric acid
    —— 4-[(4-hydroxy-3-methoxybenzyl)amino]-4-oxobutanoicacid —— C12H15NO5
    4-[(4-hydroxy-3-methoxybenzyl)amino]-4-oxobutanoicacid
    —— 4,5,6-trifluorobenzimidazole —— C7H3F3N2
    4,5,6-trifluorobenzimidazole
    —— 4-cyano-1H-imidazole-2-carboxylic acid{2-(4,4-dimethyl-cyclohex-1-enyl)-4-[1-methyl-1-(2-pyrrolidin-1-yl-ethoxy)-ethyl]-phenyl}-amide —— C28H37N5O2
    4-cyano-1H-imidazole-2-carboxylic acid{2-(4,4-dimethyl-cyclohex-1-enyl)-4-[1-methyl-1-(2-pyrrolidin-1-yl-ethoxy)-ethyl]-phenyl}-amide
    —— [4-bromo-2-(2-pyrrolidin-1-ylethoxy)phenyl]carbamic acid phenyl ester —— C19H21BrN2O3
    [4-bromo-2-(2-pyrrolidin-1-ylethoxy)phenyl]carbamic acid phenyl ester
    —— 4-chloro-2-(2-(pyrrolidin-1-yl)ethoxy)benzoic acid —— C13H16ClNO3
    4-chloro-2-(2-(pyrrolidin-1-yl)ethoxy)benzoic acid
    —— 4-methyl-2-phenyl-valeric acid-(2-pyrrolidino-ethyl ester) —— C18H27NO2
    4-methyl-2-phenyl-valeric acid-(2-pyrrolidino-ethyl ester)
    —— 4-bromo-2-(propan-2-yl)phthalazin-1(2H)-one —— C11H11BrN2O
    4-bromo-2-(propan-2-yl)phthalazin-1(2H)-one
    —— 4-(1-{[2-methyl-4-(4-trifluoromethylbenzyl)-4H-thieno[3,2-b]pyrrole-3-carbonyl]-amino}-cyclopropyl)-benzoic acid —— C26H21F3N2O3S
    4-(1-{[2-methyl-4-(4-trifluoromethylbenzyl)-4H-thieno[3,2-b]pyrrole-3-carbonyl]-amino}-cyclopropyl)-benzoic acid
    —— 4-(phthalazin-1-ylamino)benzonitrile —— C15H10N4
    4-(phthalazin-1-ylamino)benzonitrile
    —— 4-(phthalazin-1-ylamino)-N-(pyridin-2-yl)benzenesulfonamide —— C19H15N5O2S
    4-(phthalazin-1-ylamino)-N-(pyridin-2-yl)benzenesulfonamide
    —— 4-(phthalazin-1-ylamino)benzoic acid —— C15H11N3O2
    4-(phthalazin-1-ylamino)benzoic acid
    —— 4-(phthalazin-1-ylamino)-N-(thiazol-2-yl)benzenesulfonamide —— C17H13N5O2S2
    4-(phthalazin-1-ylamino)-N-(thiazol-2-yl)benzenesulfonamide
    —— 4-(phthalazin-1-ylamino)benzenesulfonamide —— C14H12N4O2S
    4-(phthalazin-1-ylamino)benzenesulfonamide
    —— 4-(cyclohexylsulfanyl)-2-methylphthalazin-1(2H)-one —— C15H18N2OS
    4-(cyclohexylsulfanyl)-2-methylphthalazin-1(2H)-one