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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 5-O-methyl 4-O-trimethylsilyl (4R,5R)-2,2-dimethyl-1,3-dioxolane-4,5-dicarboxylate 104738-65-0 C11H20O6Si
    5-O-methyl 4-O-trimethylsilyl (4R,5R)-2,2-dimethyl-1,3-dioxolane-4,5-dicarboxylate
    —— 5-chloro-2-methoxy-4'-nitro-benzophenone 76442-97-2 C14H10ClNO4
    5-chloro-2-methoxy-4'-nitro-benzophenone
    —— (5Z)-5-[(3-chloro-4-methoxyphenyl)methylidene]-3-[(4-fluorophenyl)methyl]-4-(propan-2-yl)-2,5-dihydrofuran-2-one 1569438-22-7 C22H20ClFO3
    (5Z)-5-[(3-chloro-4-methoxyphenyl)methylidene]-3-[(4-fluorophenyl)methyl]-4-(propan-2-yl)-2,5-dihydrofuran-2-one
    —— 5-Brom-4,6-diphenyl-2-pyridon 70988-02-2 C17H12BrNO
    5-Brom-4,6-diphenyl-2-pyridon
    —— 5-({[1-methyl-6-(3-pentyl-1-benzofuran-2-yl)-2-naphthyl]oxy}methyl)-1H-1,2,3,4-tetraazole 481070-83-1 C26H26N4O2
    5-({[1-methyl-6-(3-pentyl-1-benzofuran-2-yl)-2-naphthyl]oxy}methyl)-1H-1,2,3,4-tetraazole
    —— 5-amino-2-[(2,3-dimethoxyphenyl)-morpholin-4-yl-methyl]-naphthalen-1-ol 347860-04-2 C23H26N2O4
    5-amino-2-[(2,3-dimethoxyphenyl)-morpholin-4-yl-methyl]-naphthalen-1-ol
    —— 5'-deoxy-N4-(2-ethylbutyryl)-5-fluorocytidine 124012-19-7 C15H22FN3O5
    5'-deoxy-N4-(2-ethylbutyryl)-5-fluorocytidine
    —— 5-methoxy-6,7,9,10,11,12-hexahydro-5<i>H</i>-pyrido[4,3-<i>b</i>][1,4]thiazepino[2,3,4-<i>hi</i>]indole 51511-79-6 C15H18N2OS
    5-methoxy-6,7,9,10,11,12-hexahydro-5<i>H</i>-pyrido[4,3-<i>b</i>][1,4]thiazepino[2,3,4-<i>hi</i>]indole
    —— 5-chloro-N-[(2Z)-5,5-dimethyl-3-(1,3-thiazol-4-ylmethyl)-1,3-thiazolidin-2-ylidene]-2-methoxybenzamide 1034355-49-1 C17H18ClN3O2S2
    5-chloro-N-[(2Z)-5,5-dimethyl-3-(1,3-thiazol-4-ylmethyl)-1,3-thiazolidin-2-ylidene]-2-methoxybenzamide
    —— 5-but-2-enyl-8-nitro-1-phenyl-1,3,4,5-tetrahydro-benzo[<i>b</i>][1,4]diazepin-2-one 30889-76-0 C19H19N3O3
    5-but-2-enyl-8-nitro-1-phenyl-1,3,4,5-tetrahydro-benzo[<i>b</i>][1,4]diazepin-2-one
    —— 5-fluoro-2-{1-[6-(4-methoxy-cyclohexyloxy)-pyrimidin-4-yl]-piperidin-4-yloxy}-pyrimidin-4-ylamine 1033834-48-8 C20H27FN6O3
    5-fluoro-2-{1-[6-(4-methoxy-cyclohexyloxy)-pyrimidin-4-yl]-piperidin-4-yloxy}-pyrimidin-4-ylamine
    —— 5,5-diethyl-2,2-dimethyl-3-heptanol 115889-79-7 C13H28O
    5,5-diethyl-2,2-dimethyl-3-heptanol
    —— 5-[bis(p-dimethylaminophenyl)-methylene]-2-thiobarbituric acid 1079872-46-0 C21H22N4O2S
    5-[bis(p-dimethylaminophenyl)-methylene]-2-thiobarbituric acid
    —— 5-Methyl-2,7-di(2-thienyl)pyrimido<5,4-b><1λ<sup>4</sup>,4>thiazin-4-amin-5-oxid 107326-04-5 C15H12N4OS3
    5-Methyl-2,7-di(2-thienyl)pyrimido<5,4-b><1λ<sup>4</sup>,4>thiazin-4-amin-5-oxid
    —— 5-(3-chloro-4-fluoro-phenyl)-1-(5-chloro-2-methyl-phenyl)-2-(2,2-dimethyl-propyl)-1H-imidazole-4-carbonitrile 1268678-45-0 C22H20Cl2FN3
    5-(3-chloro-4-fluoro-phenyl)-1-(5-chloro-2-methyl-phenyl)-2-(2,2-dimethyl-propyl)-1H-imidazole-4-carbonitrile
    —— 5-(4-(2-(4-chloro-2-fluorophenoxy)propyl)phenyl)isoxazol-3-ol 1198744-31-8 C18H15ClFNO3
    5-(4-(2-(4-chloro-2-fluorophenoxy)propyl)phenyl)isoxazol-3-ol
    —— 5-(2-benzylmercapto-phenyl)-3-methyl-1-phenyl-1<i>H</i>-pyrazole-4-carboxylic acid 1071693-36-1 C24H20N2O2S
    5-(2-benzylmercapto-phenyl)-3-methyl-1-phenyl-1<i>H</i>-pyrazole-4-carboxylic acid
    —— 5-bromo-4-methyl-furan-2,3-dicarboxylic acid dimethyl ester 858246-08-9 C9H9BrO5
    5-bromo-4-methyl-furan-2,3-dicarboxylic acid dimethyl ester
    —— 5-[1-Morpholin-4-yl-meth-(E)-ylidene]-6,7-dihydro-5H-benzo[b]thiophen-4-one 84670-64-4 C13H15NO2S
    5-[1-Morpholin-4-yl-meth-(E)-ylidene]-6,7-dihydro-5H-benzo[b]thiophen-4-one
    —— 5-chloro-7-(chloromethyl)-3H-spiro[benzofuran-2,1'-cyclopentane] 1234845-13-6 C13H14Cl2O
    5-chloro-7-(chloromethyl)-3H-spiro[benzofuran-2,1'-cyclopentane]
    —— {5-[2-(5-chloro-3-methyl-4-oxo-3,4-dihydro-1'H-spiro[chromene-2,4'-piperidin]-1'-yl)-1,3-thiazol-5-yl]-2H-tetrazol-2-yl}acetic acid 1241952-89-5 C20H19ClN6O4S
    {5-[2-(5-chloro-3-methyl-4-oxo-3,4-dihydro-1'H-spiro[chromene-2,4'-piperidin]-1'-yl)-1,3-thiazol-5-yl]-2H-tetrazol-2-yl}acetic acid
    —— 5-(4-nitrophenyl)-2-[4-[5-(4-nitrophenyl)-1,3-thiazol-2-yl]piperazin-1-yl]-1,3-thiazole 119835-51-7 C22H18N6O4S2
    5-(4-nitrophenyl)-2-[4-[5-(4-nitrophenyl)-1,3-thiazol-2-yl]piperazin-1-yl]-1,3-thiazole
    —— 5-bromo-7-methylcoumarin 139976-20-8 C10H7BrO2
    5-bromo-7-methylcoumarin
    —— {5-[5-(5-ethyl-3,4-dihydro-1'H-spiro[chromene-2,4'-piperidin]-1'-yl)-1,3,4-thiadiazol-2-yl]-2H-tetrazol-2-yl}acetic acid 1241952-56-6 C20H23N7O3S
    {5-[5-(5-ethyl-3,4-dihydro-1'H-spiro[chromene-2,4'-piperidin]-1'-yl)-1,3,4-thiadiazol-2-yl]-2H-tetrazol-2-yl}acetic acid
    —— 5,5',6,6'-tetrakis(methylthio)-Δ<sup>2,2'</sup>-bibenzo<d>-1,3-dithiole 108970-94-1 C18H16S8
    5,5',6,6'-tetrakis(methylthio)-Δ<sup>2,2'</sup>-bibenzo<d>-1,3-dithiole
    —— [5-(2-chloro-anilino)-2-phenyl-imidazol-4-ylidene]-(2-chloro-phenyl)-amine 59800-95-2 C21H14Cl2N4
    [5-(2-chloro-anilino)-2-phenyl-imidazol-4-ylidene]-(2-chloro-phenyl)-amine
    —— 5-(2'-Bromoyclohexyl)-4-(1''-naphthyl)-1,4-pentadiene 119780-92-6 C21H23Br
    5-(2'-Bromoyclohexyl)-4-(1''-naphthyl)-1,4-pentadiene
    —— 5-(dimethyl-t-butylsiloxy)-2-azabicyclo<2.2.0>hex-5-en-3-one 95477-48-8 C11H19NO2Si
    5-(dimethyl-t-butylsiloxy)-2-azabicyclo<2.2.0>hex-5-en-3-one
    —— (5E)-3-(3-chlorobenzyl)-5-(2,4,6-trimethoxybenzylidene)furan-2(5H)-one 1168135-99-6 C21H19ClO5
    (5E)-3-(3-chlorobenzyl)-5-(2,4,6-trimethoxybenzylidene)furan-2(5H)-one
    —— 5,17,10,15-Tetrahydro-16H-dinaphtho<2.3-a:2',3'-i>carbazol 103103-53-3 C28H21N
    5,17,10,15-Tetrahydro-16H-dinaphtho<2.3-a:2',3'-i>carbazol
    —— 5-(5-Hexyl-2,4-dimethoxy-phenyl)-pentanoic acid 25508-77-4 C19H30O4
    5-(5-Hexyl-2,4-dimethoxy-phenyl)-pentanoic acid
    —— 5-ethoxy-9-chloro-2-methyl-1,2,3,4-tetrahydro-acridine 108897-47-8 C16H18ClNO
    5-ethoxy-9-chloro-2-methyl-1,2,3,4-tetrahydro-acridine
    —— (5a<i>R</i>,6<i>R</i>)-5<i>t</i>,8a-diacetoxy-7<i>c</i>,8<i>c</i>-epoxy-9-isopropylidene-5a-methyl-(5a<i>r</i>,8a<i>c</i>)-hexahydro-spiro[1<i>c</i>,4<i>c</i>-methano-cyclopent[<i>d</i>]oxepin-6,2'-oxiran]-2-one 54355-81-6 C19H22O8
    (5a<i>R</i>,6<i>R</i>)-5<i>t</i>,8a-diacetoxy-7<i>c</i>,8<i>c</i>-epoxy-9-isopropylidene-5a-methyl-(5a<i>r</i>,8a<i>c</i>)-hexahydro-spiro[1<i>c</i>,4<i>c</i>-methano-cyclopent[<i>d</i>]oxepin-6,2'-oxiran]-2-one
    —— 5,11-bis-(5,6,7,8-tetrahydro-[1,3]dioxolo[4,5-<i>g</i>]isoquinolin-5-yl)-pentadecane 97692-37-0 C35H50N2O4
    5,11-bis-(5,6,7,8-tetrahydro-[1,3]dioxolo[4,5-<i>g</i>]isoquinolin-5-yl)-pentadecane
    —— 5-ethyl-2H-tetrazole-1-oxide 118632-62-5 C3H6N4O
    5-ethyl-2H-tetrazole-1-oxide
    —— 5-bromo-6-(2,3-dimethoxy-phenyl)-2-oxo-4-phenyl-cyclohex-3-ene-1,3-dicarboxylic acid diethyl ester 103032-94-6 C26H27BrO7
    5-bromo-6-(2,3-dimethoxy-phenyl)-2-oxo-4-phenyl-cyclohex-3-ene-1,3-dicarboxylic acid diethyl ester
    —— 5-(4-benzenesulfonyl-2-benzyloxyphenyl)-1,1-dioxo-1,2,5-thiadiazolidin-3-one potassium salt 952339-89-8 C21H17N2O6S2*K
    5-(4-benzenesulfonyl-2-benzyloxyphenyl)-1,1-dioxo-1,2,5-thiadiazolidin-3-one potassium salt
    —— 5-((E)-3-Acetylamino-3-methylsulfanyl-acryloyl)-6,7-dichloro-2,3-dihydro-benzofuran-2-carboxylic acid tert-butyl ester 126244-48-2 C19H21Cl2NO5S
    5-((E)-3-Acetylamino-3-methylsulfanyl-acryloyl)-6,7-dichloro-2,3-dihydro-benzofuran-2-carboxylic acid tert-butyl ester
    —— 5-benzyloxy-6-[5-(4-fluorobenzyl)pyridine-2-yl]-2-methyl-1H-pyrimidine-4-one 500371-81-3 C24H20FN3O2
    5-benzyloxy-6-[5-(4-fluorobenzyl)pyridine-2-yl]-2-methyl-1H-pyrimidine-4-one
    —— 5,3'-Diacetyl-digicitrin, 3,6,7,8,4',5'-Hexamethoxy-5,3'-diacetoxy-flavon 13344-74-6 C25H26O12
    5,3'-Diacetyl-digicitrin, 3,6,7,8,4',5'-Hexamethoxy-5,3'-diacetoxy-flavon
    —— 5-Butyl-2,2-dimethoxy-3-methyl-2,3-dihydro-furan 117264-88-7 C11H20O3
    5-Butyl-2,2-dimethoxy-3-methyl-2,3-dihydro-furan
    —— 5-[5-[1,3]Dioxan-2-yl-3,3-dimethyl-pent-(E)-ylidene]-cyclopenta-1,3-dienecarboxylic acid ethyl ester 127820-51-3 C19H28O4
    5-[5-[1,3]Dioxan-2-yl-3,3-dimethyl-pent-(E)-ylidene]-cyclopenta-1,3-dienecarboxylic acid ethyl ester
    —— 5-chloro-1-(2,3-di-O-acetyl-5-deoxy-β-D-ribofuranosyl)-1,2,4-triazole-3-carboxamide 111379-71-6 C12H15ClN4O6
    5-chloro-1-(2,3-di-O-acetyl-5-deoxy-β-D-ribofuranosyl)-1,2,4-triazole-3-carboxamide
    —— 5-[N-(3-chloro-4-methoxyphenyl)-N-methylaminocarbonyl]-3-(3-methylbenzyl)-6-hydroxy-1H-indazole 1001192-90-0 C24H22ClN3O3
    5-[N-(3-chloro-4-methoxyphenyl)-N-methylaminocarbonyl]-3-(3-methylbenzyl)-6-hydroxy-1H-indazole
    —— (5R,6R)-3-((E)-2-Acetylamino-vinylsulfanyl)-6-[(S)-1-(4-nitro-benzenesulfonyloxy)-ethyl]-7-oxo-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 4-nitro-benzyl ester 84465-85-0 C26H24N4O11S2
    (5R,6R)-3-((E)-2-Acetylamino-vinylsulfanyl)-6-[(S)-1-(4-nitro-benzenesulfonyloxy)-ethyl]-7-oxo-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 4-nitro-benzyl ester
    —— 5-benzoylamino-valeryl chloride 43218-39-9 C12H14ClNO2
    5-benzoylamino-valeryl chloride
    —— 5-(5-(4-mercaptophenyl)-1,2,4-oxadiazol-3-yl)-1-(3-(2-methoxyethoxy)benzyl)pyridin-2(1H)-one 1571033-66-3 C23H21N3O4S
    5-(5-(4-mercaptophenyl)-1,2,4-oxadiazol-3-yl)-1-(3-(2-methoxyethoxy)benzyl)pyridin-2(1H)-one
    —— 5-Fluoro-5-phenyloctan-4-one 1258221-60-1 C14H19FO
    5-Fluoro-5-phenyloctan-4-one
    —— (5α,8β)-8-butoxymethyl-8-hydroxy-2-[4-(2,2,2-trifluoro-ethoxy)-phenyl]-2-aza-spiro[4.5]decan-1-one 1292276-92-6 C22H30F3NO4
    (5α,8β)-8-butoxymethyl-8-hydroxy-2-[4-(2,2,2-trifluoro-ethoxy)-phenyl]-2-aza-spiro[4.5]decan-1-one
    —— (5α,8α)-8-hydroxy-8-(2,2,2-trifluoro-ethoxymethyl)-2-[4-(2,2,2-trifluoro-ethoxy)-phenyl]-2-aza-spiro[4.5]decan-1-one 1292276-88-0 C20H23F6NO4
    (5α,8α)-8-hydroxy-8-(2,2,2-trifluoro-ethoxymethyl)-2-[4-(2,2,2-trifluoro-ethoxy)-phenyl]-2-aza-spiro[4.5]decan-1-one