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    首页 分子通 按分子结构分类 有机化合物 核苷、核苷酸和类似物

    核苷、核苷酸和类似物

    下级分类

    中文名称 英文名称 CAS号 化学式 结构式图片
    —— methyl N-[2-[[(2R,3S,5R)-5-(3-carbamoyl-1,2,4-triazol-1-yl)-3,4-dihydroxyoxolan-2-yl]methoxy]ethyl]carbamate —— C12H19N5O7
    methyl N-[2-[[(2R,3S,5R)-5-(3-carbamoyl-1,2,4-triazol-1-yl)-3,4-dihydroxyoxolan-2-yl]methoxy]ethyl]carbamate
    —— 1-[(4R)-5-(methoxymethyl)-4-methyloxolan-2-yl]-3,5-dimethylpyrimidine-2,4-dione —— C13H20N2O4
    1-[(4R)-5-(methoxymethyl)-4-methyloxolan-2-yl]-3,5-dimethylpyrimidine-2,4-dione
    —— 1-[(2S,5R)-4-azido-5-(methoxymethyl)oxolan-2-yl]-5-fluoro-4-methylpyrimidin-2-one —— C11H14FN5O3
    1-[(2S,5R)-4-azido-5-(methoxymethyl)oxolan-2-yl]-5-fluoro-4-methylpyrimidin-2-one
    —— 4-amino-5-(2-chloroethenyl)-1-[(2R,3R,5S)-3-hydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidin-2-one —— C11H14ClN3O4
    4-amino-5-(2-chloroethenyl)-1-[(2R,3R,5S)-3-hydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidin-2-one
    —— 1-[4-Hydroxy-5-(hydroxymethyl)thiolan-2-yl]-5-methyl-3-[3-(1-propyltriazol-4-yl)propyl]pyrimidine-2,4-dione —— C18H27N5O4S
    1-[4-Hydroxy-5-(hydroxymethyl)thiolan-2-yl]-5-methyl-3-[3-(1-propyltriazol-4-yl)propyl]pyrimidine-2,4-dione
    —— n4-Benzoyl-2'-o-[(3-oxobutyl)methyl]cytidine —— C21H25N3O7
    n4-Benzoyl-2'-o-[(3-oxobutyl)methyl]cytidine
    —— 1-[6-[[[[[[5-(2-amino-6-oxo-1H-purin-9-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-hydroxyphosphoryl]oxy-hydroxyphosphoryl]amino]methylamino]-6-oxohexyl]-2-[3-[1-ethyl-3,3-dimethyl-5-(trioxidanylsulfanyl)indol-2-ylidene]prop-1-enyl]-3,3-dimethylindol-1-ium-5-sulfonic acid —— C42H57N9O20P3S2+
    1-[6-[[[[[[5-(2-amino-6-oxo-1H-purin-9-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-hydroxyphosphoryl]oxy-hydroxyphosphoryl]amino]methylamino]-6-oxohexyl]-2-[3-[1-ethyl-3,3-dimethyl-5-(trioxidanylsulfanyl)indol-2-ylidene]prop-1-enyl]-3,3-dimethylindol-1-ium-5-sulfonic acid
    —— 2-[2-(2,4-dioxo-5-propan-2-ylpyrimidin-1-yl)-4-hydroxy-5-propyloxolan-3-yl]oxy-N,2-dimethylpropanamide —— C19H31N3O6
    2-[2-(2,4-dioxo-5-propan-2-ylpyrimidin-1-yl)-4-hydroxy-5-propyloxolan-3-yl]oxy-N,2-dimethylpropanamide
    —— 6-amino-9-[(2R,5R)-5-[[4-(1-ethoxyethenylamino)oxybutyl-methylamino]methyl]-3,4-dihydroxyoxolan-2-yl]-7H-purin-8-one —— C19H31N7O6
    6-amino-9-[(2R,5R)-5-[[4-(1-ethoxyethenylamino)oxybutyl-methylamino]methyl]-3,4-dihydroxyoxolan-2-yl]-7H-purin-8-one
    —— (2S,3S,4R,5R)-2-[(4-aminophenyl)-ethoxymethyl]-5-(6-aminopurin-9-yl)oxolane-3,4-diol —— C18H22N6O4
    (2S,3S,4R,5R)-2-[(4-aminophenyl)-ethoxymethyl]-5-(6-aminopurin-9-yl)oxolane-3,4-diol
    —— ethane;pyrrolidin-3-ylmethyl 4-[3-[6-amino-9-[(2R,3S,5S)-5-(ethylcarbamoyl)-3,4-dihydroxyoxolan-2-yl]purin-2-yl]prop-2-ynyl]piperidine-1-carboxylate —— C28H42N8O6
    ethane;pyrrolidin-3-ylmethyl 4-[3-[6-amino-9-[(2R,3S,5S)-5-(ethylcarbamoyl)-3,4-dihydroxyoxolan-2-yl]purin-2-yl]prop-2-ynyl]piperidine-1-carboxylate
    —— 9-[(4R,5S)-5-(methoxymethyl)-3,4-dimethyloxolan-2-yl]-2,6-dimethylpurine —— C15H22N4O2
    9-[(4R,5S)-5-(methoxymethyl)-3,4-dimethyloxolan-2-yl]-2,6-dimethylpurine
    —— (2R,3S,4R,5R)-5-[6-(2-aminoethylamino)purin-9-yl]-2-(hydroxymethyl)-3-(trifluoromethyl)oxolane-3,4-diol —— C13H17F3N6O4
    (2R,3S,4R,5R)-5-[6-(2-aminoethylamino)purin-9-yl]-2-(hydroxymethyl)-3-(trifluoromethyl)oxolane-3,4-diol
    —— [(3aR,4R,6R,6aR)-4-(6-aminopurin-9-yl)-2,2-dimethyl-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-6-yl]methyl butyl carbonate —— C18H25N5O6
    [(3aR,4R,6R,6aR)-4-(6-aminopurin-9-yl)-2,2-dimethyl-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-6-yl]methyl butyl carbonate
    —— [(3S,4R,5R)-2-(1H-benzimidazol-2-yl)-4-hydroxy-5-(hydroxymethyl)oxolan-3-yl] [hydroxy(phosphonooxy)phosphoryl] hydrogen phosphate —— C12H17N2O13P3
    [(3S,4R,5R)-2-(1H-benzimidazol-2-yl)-4-hydroxy-5-(hydroxymethyl)oxolan-3-yl] [hydroxy(phosphonooxy)phosphoryl] hydrogen phosphate
    —— 1-[3-fluoro-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-5-[(E)-2-trimethylsilylethenyl]pyrimidine-2,4-dione;trimethyl-[(E)-prop-1-enyl]silane —— C20H35FN2O5Si2
    1-[3-fluoro-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-5-[(E)-2-trimethylsilylethenyl]pyrimidine-2,4-dione;trimethyl-[(E)-prop-1-enyl]silane
    —— octadeca-9,12-dienyl N-[1-[(2R,3R,4S,5R)-3,4-dihydroxy-5-methyloxolan-2-yl]-5-fluoro-2-oxopyrimidin-4-yl]carbamate —— C28H44FN3O6
    octadeca-9,12-dienyl N-[1-[(2R,3R,4S,5R)-3,4-dihydroxy-5-methyloxolan-2-yl]-5-fluoro-2-oxopyrimidin-4-yl]carbamate
    —— ethyl 1-[9-[(3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-6-[(3-ethoxy-2-formyl-3-oxopropylidene)amino]purin-2-yl]pyrazole-4-carboxylate —— C22H25N7O9
    ethyl 1-[9-[(3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-6-[(3-ethoxy-2-formyl-3-oxopropylidene)amino]purin-2-yl]pyrazole-4-carboxylate
    —— 1-[[(2R,3S,5R)-5-(6-aminopurin-9-yl)-3-hydroxyoxolan-2-yl]methyl]-9-[(2R,4S,5R)-4-hydroxy-5-methyloxolan-2-yl]-2-(methylamino)purin-6-one —— C21H26N10O5
    1-[[(2R,3S,5R)-5-(6-aminopurin-9-yl)-3-hydroxyoxolan-2-yl]methyl]-9-[(2R,4S,5R)-4-hydroxy-5-methyloxolan-2-yl]-2-(methylamino)purin-6-one
    —— [(2S,3aS,4R,6R)-4-[6-(ethylcarbamoylamino)purin-9-yl]-2-(2-phenylethenyl)-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-6-yl]methoxy-(2-aminoethyl)phosphinic acid —— C24H30N7O7P
    [(2S,3aS,4R,6R)-4-[6-(ethylcarbamoylamino)purin-9-yl]-2-(2-phenylethenyl)-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-6-yl]methoxy-(2-aminoethyl)phosphinic acid
    —— 4-(1-benzothiophen-2-yl)-1-[(3R,4R,5R)-3,4-dihydroxy-5-(hydroxymethyl)-3-methyloxolan-2-yl]pyrimidin-2-one —— C18H18N2O5S
    4-(1-benzothiophen-2-yl)-1-[(3R,4R,5R)-3,4-dihydroxy-5-(hydroxymethyl)-3-methyloxolan-2-yl]pyrimidin-2-one
    —— 5-[(3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-1H-pyrazolo[3,4-d]pyrimidin-4-one —— C10H12N4O5
    5-[(3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-1H-pyrazolo[3,4-d]pyrimidin-4-one
    —— 1-[[(2S,3S,4R,5R)-3,4-dihydroxy-5-purin-9-yloxolan-2-yl]-(7H-purin-6-ylsulfanyloxy)methyl]sulfanyl-5-fluoropyrimidine-2,4-dione —— C19H15FN10O6S2
    1-[[(2S,3S,4R,5R)-3,4-dihydroxy-5-purin-9-yloxolan-2-yl]-(7H-purin-6-ylsulfanyloxy)methyl]sulfanyl-5-fluoropyrimidine-2,4-dione
    —— ethyl 1-[[[(2R,5R)-5-[5-(2-bromoethenyl)-2,4-dioxopyrimidin-1-yl]-3-hydroxyoxolan-2-yl]methoxy-[4-(trifluoromethyl)phenoxy]phosphoryl]amino]cyclopentane-1-carboxylate —— C26H30BrF3N3O9P
    ethyl 1-[[[(2R,5R)-5-[5-(2-bromoethenyl)-2,4-dioxopyrimidin-1-yl]-3-hydroxyoxolan-2-yl]methoxy-[4-(trifluoromethyl)phenoxy]phosphoryl]amino]cyclopentane-1-carboxylate
    —— (1-Carbamoylcyclopropyl) 5-[6-amino-2-(3-piperidin-4-ylprop-1-ynyl)purin-9-yl]-3,4-dihydroxyoxolane-2-carboxylate —— C22H27N7O6
    (1-Carbamoylcyclopropyl) 5-[6-amino-2-(3-piperidin-4-ylprop-1-ynyl)purin-9-yl]-3,4-dihydroxyoxolane-2-carboxylate
    —— (2S,3S,4R,5R)-5-[6-amino-2-[(3-methylimidazol-4-yl)methyldiazenyl]purin-9-yl]-N-ethyl-3,4-dihydroxyoxolane-2-carboxamide —— C17H22N10O4
    (2S,3S,4R,5R)-5-[6-amino-2-[(3-methylimidazol-4-yl)methyldiazenyl]purin-9-yl]-N-ethyl-3,4-dihydroxyoxolane-2-carboxamide
    —— (2R,5R)-2-[6-[[1-(1,4-dioxan-2-yl)-2-phenylethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol —— C22H27N5O6
    (2R,5R)-2-[6-[[1-(1,4-dioxan-2-yl)-2-phenylethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol
    —— 1-N-[[(3S,4R,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methyl]-3,6-difluoro-2-N-(1-hydroxy-2H-isoindol-4-yl)benzene-1,2-dicarboxamide —— C26H22F2N8O6
    1-N-[[(3S,4R,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methyl]-3,6-difluoro-2-N-(1-hydroxy-2H-isoindol-4-yl)benzene-1,2-dicarboxamide
    —— 2-amino-9-[(2R,5R)-5-[(4-amino-2-oxopyrimidin-1-yl)oxymethyl]-3,4-dihydroxyoxolan-2-yl]-1H-purin-6-one —— C14H16N8O6
    2-amino-9-[(2R,5R)-5-[(4-amino-2-oxopyrimidin-1-yl)oxymethyl]-3,4-dihydroxyoxolan-2-yl]-1H-purin-6-one
    —— 2-amino-9-[4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-8-thiophen-2-yl-1H-purin-6-one —— C14H15N5O4S
    2-amino-9-[4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-8-thiophen-2-yl-1H-purin-6-one
    —— ethyl 1-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-2-oxo-4-sulfanylidenepyrimidine-5-carboxylate —— C12H16N2O6S
    ethyl 1-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-2-oxo-4-sulfanylidenepyrimidine-5-carboxylate
    —— S-[2-[2-[[di(propan-2-yl)amino]-[4-methoxy-5-(2-methyl-6-oxo-1H-purin-9-yl)-2-propyloxolan-3-yl]oxyphosphanyl]oxyethoxy]ethyl] 2,2-dimethylpropanethioate —— C29H50N5O7PS
    S-[2-[2-[[di(propan-2-yl)amino]-[4-methoxy-5-(2-methyl-6-oxo-1H-purin-9-yl)-2-propyloxolan-3-yl]oxyphosphanyl]oxyethoxy]ethyl] 2,2-dimethylpropanethioate
    —— (2R,3R,4S,5R)-2-(6-amino-8-bromo-2-cyclopentyloxypurin-9-yl)-5-methyloxolane-3,4-diol;(2R,3R,4S,5R)-2-(6-amino-2-cyclopentyloxy-8-methylpurin-9-yl)-5-methyloxolane-3,4-diol;(2R,3R,4S,5R)-2-(6-amino-2-cyclopentyloxypurin-9-yl)-5-methyloxolane-3,4-diol —— C46H64BrN15O12
    (2R,3R,4S,5R)-2-(6-amino-8-bromo-2-cyclopentyloxypurin-9-yl)-5-methyloxolane-3,4-diol;(2R,3R,4S,5R)-2-(6-amino-2-cyclopentyloxy-8-methylpurin-9-yl)-5-methyloxolane-3,4-diol;(2R,3R,4S,5R)-2-(6-amino-2-cyclopentyloxypurin-9-yl)-5-methyloxolane-3,4-diol
    —— 2-[5-[1-ethyl-3,3-dimethyl-5-(trioxidanylsulfanyl)indol-2-ylidene]penta-1,3-dienyl]-1-[3-[[3-[3-[1-[(2R,4R,5R)-4-hydroxy-5-[[hydroxy-[hydroxy(phosphonooxy)phosphoryl]oxyphosphoryl]oxymethyl]oxolan-2-yl]-2,4-dioxopyrimidin-5-yl]prop-2-ynylamino]-3-oxopropyl]disulfanyl]propyl]-3,3-dimethylindol-1-ium-5-sulfonic acid —— C45H57N5O21P3S4+
    2-[5-[1-ethyl-3,3-dimethyl-5-(trioxidanylsulfanyl)indol-2-ylidene]penta-1,3-dienyl]-1-[3-[[3-[3-[1-[(2R,4R,5R)-4-hydroxy-5-[[hydroxy-[hydroxy(phosphonooxy)phosphoryl]oxyphosphoryl]oxymethyl]oxolan-2-yl]-2,4-dioxopyrimidin-5-yl]prop-2-ynylamino]-3-oxopropyl]disulfanyl]propyl]-3,3-dimethylindol-1-ium-5-sulfonic acid
    —— [(2S,5R)-3-azido-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-2-yl]methyl 2,2,2-trifluoroacetate —— C12H12F3N5O5
    [(2S,5R)-3-azido-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-2-yl]methyl 2,2,2-trifluoroacetate
    —— 3-N-[3-[(2R,3R,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]prop-2-enyl]-4,5-dihydroxy-1-N,1-N-dimethylbenzene-1,3-dicarboxamide —— C22H25N7O7
    3-N-[3-[(2R,3R,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]prop-2-enyl]-4,5-dihydroxy-1-N,1-N-dimethylbenzene-1,3-dicarboxamide
    —— (Z)-7-((2R,3R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-N'-hydroxy-4-(isopentylamino)-7H-pyrrolo[2,3-d]pyrimidine-5-carboximidamide 1256456-31-1 C17H26N6O5
    (Z)-7-((2R,3R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-N'-hydroxy-4-(isopentylamino)-7H-pyrrolo[2,3-d]pyrimidine-5-carboximidamide
    —— methyl 1-[[[(2R,5R)-5-[5-(2-bromoethenyl)-2,4-dioxopyrimidin-1-yl]-3-hydroxyoxolan-2-yl]methoxy-[4-(trifluoromethyl)phenoxy]phosphoryl]amino]cyclopentane-1-carboxylate —— C25H28BrF3N3O9P
    methyl 1-[[[(2R,5R)-5-[5-(2-bromoethenyl)-2,4-dioxopyrimidin-1-yl]-3-hydroxyoxolan-2-yl]methoxy-[4-(trifluoromethyl)phenoxy]phosphoryl]amino]cyclopentane-1-carboxylate
    —— 3-[1-[(2R,4R,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-2,4-dioxopyrimidin-5-yl]prop-2-enoic acid —— C12H14N2O7
    3-[1-[(2R,4R,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-2,4-dioxopyrimidin-5-yl]prop-2-enoic acid
    —— N-[9-[(3R,4S,5R)-3-hydroxy-5-(hydroxymethyl)-4-phenylmethoxy-5-(phenylmethoxymethyl)oxolan-2-yl]purin-6-yl]benzamide —— C32H31N5O6
    N-[9-[(3R,4S,5R)-3-hydroxy-5-(hydroxymethyl)-4-phenylmethoxy-5-(phenylmethoxymethyl)oxolan-2-yl]purin-6-yl]benzamide
    —— 1-[4-Hydroxy-3-[2-(methoxymethyl)-6-methylcyclohexyl]oxy-5-propyloxolan-2-yl]-5-methylpyrimidine-2,4-dione —— C21H34N2O6
    1-[4-Hydroxy-3-[2-(methoxymethyl)-6-methylcyclohexyl]oxy-5-propyloxolan-2-yl]-5-methylpyrimidine-2,4-dione
    —— 2-amino-9-[3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-8-(4-methylpiperazin-4-ium-1-yl)-1H-purin-6-one;chloride —— C15H24ClN7O5
    2-amino-9-[3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-8-(4-methylpiperazin-4-ium-1-yl)-1H-purin-6-one;chloride
    —— 5-(1H-diazirin-3-yl)-1-[(2S,5S)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidine-2,4-dione —— C10H12N4O5
    5-(1H-diazirin-3-yl)-1-[(2S,5S)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidine-2,4-dione
    —— (4S)-4-(2-amino-6-oxo-1H-purin-9-yl)-2-(hydroxymethyl)cyclopentane-1,3-dione —— C11H11N5O4
    (4S)-4-(2-amino-6-oxo-1H-purin-9-yl)-2-(hydroxymethyl)cyclopentane-1,3-dione
    —— 6-amino-9-[(3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-7H-purin-8-one —— C10H13N5O5
    6-amino-9-[(3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-7H-purin-8-one
    —— ethyl (2R)-2-[[[(2S,3S,5R)-3-azido-5-(2,6-diaminopurin-9-yl)oxolan-2-yl]methoxy-phenoxyphosphoryl]amino]propanoate —— C21H27N10O6P
    ethyl (2R)-2-[[[(2S,3S,5R)-3-azido-5-(2,6-diaminopurin-9-yl)oxolan-2-yl]methoxy-phenoxyphosphoryl]amino]propanoate
    —— 1-[(2R,3R,4S,5R)-3,4-dihydroxy-5-[(2,3,4,5,6-pentafluorophenoxy)carbothioyloxymethyl]oxolan-2-yl]pyrimidine-2,4-dione —— C16H11F5N2O7S
    1-[(2R,3R,4S,5R)-3,4-dihydroxy-5-[(2,3,4,5,6-pentafluorophenoxy)carbothioyloxymethyl]oxolan-2-yl]pyrimidine-2,4-dione
    —— 4-amino-7-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(1-hydroxyprop-2-enyl)oxolan-2-yl]pyrrolo[2,3-d]pyrimidine-5-carbonitrile —— C14H15N5O4
    4-amino-7-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(1-hydroxyprop-2-enyl)oxolan-2-yl]pyrrolo[2,3-d]pyrimidine-5-carbonitrile
    —— [(4R)-5-[4-amino-5-(nitrosomethyl)pyrrolo[2,3-d]pyrimidin-7-yl]-3,4-dihydroxy-4-methyloxolan-2-yl]methyl dihydrogen phosphate —— C13H18N5O8P
    [(4R)-5-[4-amino-5-(nitrosomethyl)pyrrolo[2,3-d]pyrimidin-7-yl]-3,4-dihydroxy-4-methyloxolan-2-yl]methyl dihydrogen phosphate
    —— [[(2S,3R,4R,5R)-5-(6-benzamidopurin-9-yl)-4-[tert-butyl(dimethyl)silyl]oxy-3-hydroxyoxolan-2-yl]-[bis(2-cyanoethoxy)phosphoryloxy]methyl]-[[(2R,3R,4R,5R)-4-[tert-butyl(dimethyl)silyl]oxy-5-[2-(dimethylaminomethylideneamino)-6-oxo-1H-purin-9-yl]-3-hydroxyoxolan-2-yl]methoxy]phosphinic acid —— C48H69N13O15P2Si2
    [[(2S,3R,4R,5R)-5-(6-benzamidopurin-9-yl)-4-[tert-butyl(dimethyl)silyl]oxy-3-hydroxyoxolan-2-yl]-[bis(2-cyanoethoxy)phosphoryloxy]methyl]-[[(2R,3R,4R,5R)-4-[tert-butyl(dimethyl)silyl]oxy-5-[2-(dimethylaminomethylideneamino)-6-oxo-1H-purin-9-yl]-3-hydroxyoxolan-2-yl]methoxy]phosphinic acid