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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 5-Ethyl-2,2-dimethyl-3,8-dioxo-3,4,5,8-tetrahydro-2H-1-oxa-4,5-diaza-anthracene-7-carboxylic acid 119453-66-6 C16H16N2O5
    5-Ethyl-2,2-dimethyl-3,8-dioxo-3,4,5,8-tetrahydro-2H-1-oxa-4,5-diaza-anthracene-7-carboxylic acid
    —— 5-O-allyl-2,4,6-tri-O-benzyl-myo-inositol 1233946-40-1 C30H34O6
    5-O-allyl-2,4,6-tri-O-benzyl-myo-inositol
    —— {(5S)-5-[(tert-butoxycarbonyl)amino]-5,6-dihydro-2H-pyran-2-yl}methyl acetate 1607591-49-0 C13H21NO5
    {(5S)-5-[(tert-butoxycarbonyl)amino]-5,6-dihydro-2H-pyran-2-yl}methyl acetate
    —— 5-benzhydryl-1-cyclohexyl-1<i>H</i>-tetrazole 72306-47-9 C20H22N4
    5-benzhydryl-1-cyclohexyl-1<i>H</i>-tetrazole
    —— 5-(4-Methoxybenzyl)-1,3-thiazolidin-2-thion 74047-95-3 C11H13NOS2
    5-(4-Methoxybenzyl)-1,3-thiazolidin-2-thion
    —— 5-ethyl-2-imino-3-(2'-cyanobiphenyl-4-yl)methyl-1,3,4-thiadiazoline.hydrobromide 186667-84-5 BrH*C18H16N4S
    5-ethyl-2-imino-3-(2'-cyanobiphenyl-4-yl)methyl-1,3,4-thiadiazoline.hydrobromide
    —— 5-methoxy-6-(4-oxocyclohexen-1-yl)-3H-1,3-benzoxazol-2-one 377083-78-8 C14H13NO4
    5-methoxy-6-(4-oxocyclohexen-1-yl)-3H-1,3-benzoxazol-2-one
    —— 5-tetradecyl-4,7-dioxa-1,10-decanediol bis-p-toluenesulfonate 156210-20-7 C36H58O8S2
    5-tetradecyl-4,7-dioxa-1,10-decanediol bis-p-toluenesulfonate
    —— (5S,11aS)-2-ethyl-5-(2,5-dimethoxyphenyl)-5,6,11,11a-tetrahydro-1H-imidazo[1',5':1,6]pyrido[3,4-b]indole-1,3(2H)-dione 1196517-62-0 C23H23N3O4
    (5S,11aS)-2-ethyl-5-(2,5-dimethoxyphenyl)-5,6,11,11a-tetrahydro-1H-imidazo[1',5':1,6]pyrido[3,4-b]indole-1,3(2H)-dione
    —— 5α-Cholestan-1α,2β,19-triol triacetate 84983-43-7 C33H54O6
    5α-Cholestan-1α,2β,19-triol triacetate
    —— 5,6-Dimethyl-2-morpholin-4-yl-thieno[2,3-d][1,3]thiazin-4-ylideneamine; compound with sulfuric acid 142310-55-2 C12H15N3OS2*H2O4S
    5,6-Dimethyl-2-morpholin-4-yl-thieno[2,3-d][1,3]thiazin-4-ylideneamine; compound with sulfuric acid
    —— 5,5-Dimethyl-6-oxobicyclo<2.2.2>octan-2,3-dicarbonsaeure 102435-69-8 C12H16O5
    5,5-Dimethyl-6-oxobicyclo<2.2.2>octan-2,3-dicarbonsaeure
    —— 5-chloro-12-N-β-hydroxyethylcytisine 1610048-56-0 C13H17ClN2O2
    5-chloro-12-N-β-hydroxyethylcytisine
    —— 5-fluoro-N-<4-O-<methyl (2,3,4-tri-O-acetyl-β-D-glucopyranosyl)uronate>-3-nitrobenzyloxycarbonyl>-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-1-ylmethylamine 228412-67-7 C26H27FN4O16
    5-fluoro-N-<4-O-<methyl (2,3,4-tri-O-acetyl-β-D-glucopyranosyl)uronate>-3-nitrobenzyloxycarbonyl>-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-1-ylmethylamine
    —— 5-bromo-1,1,4-trichloropentan-2-one 69063-30-5 C5H6BrCl3O
    5-bromo-1,1,4-trichloropentan-2-one
    —— 5'-O-<(diethylphosphono)methyl>-3'-azido-3'-deoxythymidine 129151-53-7 C15H24N5O7P
    5'-O-<(diethylphosphono)methyl>-3'-azido-3'-deoxythymidine
    —— 5β-3,7-diacetoxycholanic acid isopropyl ester 944409-55-6 C31H50O6
    5β-3,7-diacetoxycholanic acid isopropyl ester
    —— 5-methyl-2-(5-methyl-1,2-oxazol-3-yl)-6-[6-(trifluoromethyl)-3,4-dihydro-1H-isoquinolin-2-yl]pyrimidine-4-carboxylic acid 1420298-00-5 C20H17F3N4O3
    5-methyl-2-(5-methyl-1,2-oxazol-3-yl)-6-[6-(trifluoromethyl)-3,4-dihydro-1H-isoquinolin-2-yl]pyrimidine-4-carboxylic acid
    —— 5-(2-bromophenyl)-2-isopropylpentanal 1092491-79-6 C14H19BrO
    5-(2-bromophenyl)-2-isopropylpentanal
    —— 5-(5-pyridin-4-yl-[1,2,4]oxadiazol-3-yl)-2-(2,2,2-trifluoro-ethoxy)-pyridine 1035214-37-9 C14H9F3N4O2
    5-(5-pyridin-4-yl-[1,2,4]oxadiazol-3-yl)-2-(2,2,2-trifluoro-ethoxy)-pyridine
    —— 5-chloro-6-(2-chloro-6-fluorophenyl)-7-[N-(2,2,2-trifluoroethyl)-N-allylamino]-[1,2,4]triazolo[1,5-a]pyrimidine 214633-99-5 C16H11Cl2F4N5
    5-chloro-6-(2-chloro-6-fluorophenyl)-7-[N-(2,2,2-trifluoroethyl)-N-allylamino]-[1,2,4]triazolo[1,5-a]pyrimidine
    —— 5-Bromo-6-(3,3-dimethoxypropyl)-1,3-benzodioxole 114086-43-0 C12H15BrO4
    5-Bromo-6-(3,3-dimethoxypropyl)-1,3-benzodioxole
    —— 5-{[4-(4-cyanophenyl)-3,5-dimethyl-1H-pyrazol-1-yl]methyl}pyridine-2-carbonitrile 1126773-28-1 C19H15N5
    5-{[4-(4-cyanophenyl)-3,5-dimethyl-1H-pyrazol-1-yl]methyl}pyridine-2-carbonitrile
    —— (5R)-3t-methoxy-7-oxo-3c-vinyl-(5rH)-4-oxa-1-aza-bicyclo[3.2.0]heptane-2c-carboxylic acid benzyl ester 86826-50-8 C16H17NO5
    (5R)-3t-methoxy-7-oxo-3c-vinyl-(5rH)-4-oxa-1-aza-bicyclo[3.2.0]heptane-2c-carboxylic acid benzyl ester
    —— 5-bromo-[1,3]dithiane 92748-23-7 C4H7BrS2
    5-bromo-[1,3]dithiane
    —— 5,6,14-trimethyl-5,12-dihydro-5,7,12,14-tetraazapentacene 1161396-04-8 C21H18N4
    5,6,14-trimethyl-5,12-dihydro-5,7,12,14-tetraazapentacene
    —— 5,6-dimethyl-1-[5-(phenylseleno)pentyl]-1H-benzimidazole 941306-86-1 C20H24N2Se
    5,6-dimethyl-1-[5-(phenylseleno)pentyl]-1H-benzimidazole
    —— 5-chloro-6-methyl-3-[(4-morpholin-4-ylanilino)methyl]-1,3-benzoxazole-2-thione 118794-35-7 C19H20ClN3O2S
    5-chloro-6-methyl-3-[(4-morpholin-4-ylanilino)methyl]-1,3-benzoxazole-2-thione
    —— 5'-Amino-N6-benzoyl-3'-O-t-butyldimethylsilyl-2',5'-dideoxyadenosine, p-toluenesulfonate salt 142721-38-8 C7H8O3S*C23H32N6O3Si
    5'-Amino-N6-benzoyl-3'-O-t-butyldimethylsilyl-2',5'-dideoxyadenosine, p-toluenesulfonate salt
    —— 5-[2-(3,5-di-<i>tert</i>-butyl-4-hydroxy-phenyl)-1,1-dimethyl-ethyl]-imidazolidine-2,4-dione 56106-49-1 C21H32N2O3
    5-[2-(3,5-di-<i>tert</i>-butyl-4-hydroxy-phenyl)-1,1-dimethyl-ethyl]-imidazolidine-2,4-dione
    —— (5-{2-[4-(2-sec-butylphenoxy)piperidin-1-yl]pyrimidin-5-yl}pyridin-3-yl)acetic acid 1020658-40-5 C26H30N4O3
    (5-{2-[4-(2-sec-butylphenoxy)piperidin-1-yl]pyrimidin-5-yl}pyridin-3-yl)acetic acid
    —— (5S,6S)-6-((R)-1-Hydroxy-ethyl)-3-methyl-7-oxo-4-thia-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid methyl ester 86998-77-8 C10H13NO4S
    (5S,6S)-6-((R)-1-Hydroxy-ethyl)-3-methyl-7-oxo-4-thia-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid methyl ester
    —— 5-[6-(4-methoxyphenyl)-4,7-dihydro-1-thia-4,5-diazacyclopenta[a]pentalen-2-yl]pyrimidin-2-ylamine Example hydrochloride 1469858-76-1 C19H15N5OS*ClH
    5-[6-(4-methoxyphenyl)-4,7-dihydro-1-thia-4,5-diazacyclopenta[a]pentalen-2-yl]pyrimidin-2-ylamine Example hydrochloride
    —— 5-(2-amino-5-iodo-pyrimidin-4-yl)-2-phenyl-1H-pyrrole-3-carboxylic acid 1421581-15-8 C15H11IN4O2
    5-(2-amino-5-iodo-pyrimidin-4-yl)-2-phenyl-1H-pyrrole-3-carboxylic acid
    —— 5-propyl-5-<(4-nitrobenzoylamino)(4-pyridyl)methyl>barbituric acid 112055-01-3 C20H19N5O6
    5-propyl-5-<(4-nitrobenzoylamino)(4-pyridyl)methyl>barbituric acid
    —— 5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic acid hydrazide 920526-49-4 C16H13Cl3N4O
    5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic acid hydrazide
    —— 5-methyl-4-[(3-methyl-1-phenyl-5-sulfanylidene-4H-pyrazol-4-yl)-(3-nitrophenyl)methyl]-2-phenyl-4H-pyrazol-3-one 96128-61-9 C27H23N5O3S
    5-methyl-4-[(3-methyl-1-phenyl-5-sulfanylidene-4H-pyrazol-4-yl)-(3-nitrophenyl)methyl]-2-phenyl-4H-pyrazol-3-one
    —— 5-(3-Cyano-3-hydroxy-propyl)-2-methoxy-benzoic acid methyl ester 206192-35-0 C13H15NO4
    5-(3-Cyano-3-hydroxy-propyl)-2-methoxy-benzoic acid methyl ester
    —— 5-[4-[2-[N-(6-Benzyloxy-2,5,7,8-tetramethylchroman-2-ylmethyl)-N-ethylamino]ethoxy] phenyl methylene]thiazolidine-2,4-dione 187340-63-2 C35H40N2O5S
    5-[4-[2-[N-(6-Benzyloxy-2,5,7,8-tetramethylchroman-2-ylmethyl)-N-ethylamino]ethoxy] phenyl methylene]thiazolidine-2,4-dione
    —— 5-chloro-N-cyclopentyl-2-ethoxybenzenesulfonamide 838887-17-5 C13H18ClNO3S
    5-chloro-N-cyclopentyl-2-ethoxybenzenesulfonamide
    —— 5-[5-(2-methyl-propane-2-sulfonyl)-2-propoxy-phenyl]-1,6-dihydro-[1,2,3]triazolo[4,5-<i>d</i>]pyrimidin-7-one 61627-06-3 C17H21N5O4S
    5-[5-(2-methyl-propane-2-sulfonyl)-2-propoxy-phenyl]-1,6-dihydro-[1,2,3]triazolo[4,5-<i>d</i>]pyrimidin-7-one
    —— 5-(6-aminopyrimidin-4-yl)-2-[2-chloro-5-(trifluoromethyl)phenyl]-1H-pyrrole-3-carbonitrile 1553973-55-9 C16H9ClF3N5
    5-(6-aminopyrimidin-4-yl)-2-[2-chloro-5-(trifluoromethyl)phenyl]-1H-pyrrole-3-carbonitrile
    —— (5R)-5-[(tert-butyldimethylsilyl)oxy]-N-(1-oxo-3-phenylpropyl)-3,4,5,6-tetrahydro-2(1H)-pyridone 375366-21-5 C20H31NO3Si
    (5R)-5-[(tert-butyldimethylsilyl)oxy]-N-(1-oxo-3-phenylpropyl)-3,4,5,6-tetrahydro-2(1H)-pyridone
    —— 5-hydroxyoxyalyl-4-methoxy-isophthalic acid 861019-04-7 C11H8O8
    5-hydroxyoxyalyl-4-methoxy-isophthalic acid
    —— 5-hydroxy-15-methyltricyclo[8.7.0.011,15]heptadec-7-yne-2,14-dione 41033-64-1 C18H24O3
    5-hydroxy-15-methyltricyclo[8.7.0.011,15]heptadec-7-yne-2,14-dione
    —— 5-Difluoromethyl-1-(4-fluorophenyl)-2-(4-methylsulfonylphenyl)pyrrole 197904-62-4 C18H14F3NO2S
    5-Difluoromethyl-1-(4-fluorophenyl)-2-(4-methylsulfonylphenyl)pyrrole
    —— 5(R),3(S)-6-[N-benzyl-N-(tert-butyloxycarbonyl)]amino-2,5-dimethyl-2-nitro-3-(diphenylphosphatoxy)hexane 477952-62-8 C32H41N2O8P
    5(R),3(S)-6-[N-benzyl-N-(tert-butyloxycarbonyl)]amino-2,5-dimethyl-2-nitro-3-(diphenylphosphatoxy)hexane
    —— 5-(4-chloro-phenyl)-3-phenyl-pyrazole-1-carboxylic acid phenyl ester 59807-37-3 C22H15ClN2O2
    5-(4-chloro-phenyl)-3-phenyl-pyrazole-1-carboxylic acid phenyl ester
    —— 5-[3-(Benzyl-methyl-amino)-propyl]-10,11-dihydro-5H-dibenzo[a,d]cyclohepten-5-ol 14471-67-1 C26H29NO
    5-[3-(Benzyl-methyl-amino)-propyl]-10,11-dihydro-5H-dibenzo[a,d]cyclohepten-5-ol
    —— 5,9-Dibenzyl-6,6-dioxo-5,6,7,9-tetrahydro-6λ<sup>6</sup>-thia-5,7,9-triaza-benzocyclohepten-8-one 58014-95-2 C21H19N3O3S
    5,9-Dibenzyl-6,6-dioxo-5,6,7,9-tetrahydro-6λ<sup>6</sup>-thia-5,7,9-triaza-benzocyclohepten-8-one