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嘌呤核苷

中文名称 英文名称 CAS号 化学式 结构式图片
—— [(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methylperoxy-[(2R,3S)-4-[[(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methylperoxy-hydroxyphosphoryl]sulfanyl-1,2,3,4-tetrahydroxybutyl]sulfanylphosphinic acid —— C24H34N10O18P2S2
[(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methylperoxy-[(2R,3S)-4-[[(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methylperoxy-hydroxyphosphoryl]sulfanyl-1,2,3,4-tetrahydroxybutyl]sulfanylphosphinic acid
—— (3R,4S,5R)-2-(2,6-diaminopurin-9-yl)-5-(hydroxymethyl)-4-nonoxyoxolan-3-ol —— C19H32N6O4
(3R,4S,5R)-2-(2,6-diaminopurin-9-yl)-5-(hydroxymethyl)-4-nonoxyoxolan-3-ol
—— [(2R,3S,4R,5R)-5-(6-amino-2-methylpurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methyl benzoate —— C18H19N5O5
[(2R,3S,4R,5R)-5-(6-amino-2-methylpurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methyl benzoate
—— 2-amino-9-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-8-(4-oxocyclohexa-2,5-dien-1-ylidene)-3,7-dihydropurin-6-one —— C16H17N5O5
2-amino-9-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-8-(4-oxocyclohexa-2,5-dien-1-ylidene)-3,7-dihydropurin-6-one
—— [(2R,4S)-7-(6-aminopurin-9-yl)-4-(2-phenylethenyl)-3,5,8,9-tetraoxatricyclo[5.1.1.02,6]nonan-1-yl]methanol —— C19H17N5O5
[(2R,4S)-7-(6-aminopurin-9-yl)-4-(2-phenylethenyl)-3,5,8,9-tetraoxatricyclo[5.1.1.02,6]nonan-1-yl]methanol
—— (3S)-2-[6-(cyclohexylamino)-2-(2H-tetrazol-5-yl)purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol —— C17H23N9O4
(3S)-2-[6-(cyclohexylamino)-2-(2H-tetrazol-5-yl)purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol
—— N-[9-[(2R,4S,5R)-5-[[butyl(dimethyl)silyl]oxymethyl]-4-hydroxyoxolan-2-yl]-6-oxo-1H-purin-2-yl]-2-phenoxyacetamide —— C24H33N5O6Si
N-[9-[(2R,4S,5R)-5-[[butyl(dimethyl)silyl]oxymethyl]-4-hydroxyoxolan-2-yl]-6-oxo-1H-purin-2-yl]-2-phenoxyacetamide
—— (2R,3R,4R,5R)-5-(2-chloro-6-methoxypurin-9-yl)-4-fluoro-2-(hydroxymethyl)oxolan-3-ol —— C11H12ClFN4O4
(2R,3R,4R,5R)-5-(2-chloro-6-methoxypurin-9-yl)-4-fluoro-2-(hydroxymethyl)oxolan-3-ol
—— (3R,4R,5R)-5-(hydroxymethyl)-3-methyl-2-(6-pyridin-3-ylpurin-9-yl)oxolane-3,4-diol —— C16H17N5O4
(3R,4R,5R)-5-(hydroxymethyl)-3-methyl-2-(6-pyridin-3-ylpurin-9-yl)oxolane-3,4-diol
—— ethyl 3-[1-[9-[(2R,3R,4R,5R)-3,4-bis[[tert-butyl(dimethyl)silyl]oxy]-5-[[tert-butyl(dimethyl)silyl]oxymethyl]oxolan-2-yl]-6-(cyclopentylamino)purin-2-yl]pyrazol-4-yl]prop-2-enoate —— C41H71N7O6Si3
ethyl 3-[1-[9-[(2R,3R,4R,5R)-3,4-bis[[tert-butyl(dimethyl)silyl]oxy]-5-[[tert-butyl(dimethyl)silyl]oxymethyl]oxolan-2-yl]-6-(cyclopentylamino)purin-2-yl]pyrazol-4-yl]prop-2-enoate
—— (2R,3S,5R)-5-(6-aminopurin-9-yl)-2-(ethenoxymethyl)oxolan-3-ol —— C12H15N5O3
(2R,3S,5R)-5-(6-aminopurin-9-yl)-2-(ethenoxymethyl)oxolan-3-ol
—— 1-[6-amino-9-[(2R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]purin-2-yl]sulfanyl-4-bromobutane-2,3-dione —— C14H16BrN5O6S
1-[6-amino-9-[(2R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]purin-2-yl]sulfanyl-4-bromobutane-2,3-dione
—— [(2R,5R)-5-[2-(2-methylpropanoylamino)-6-oxo-1H-purin-9-yl]-3-(2-methylpropanoyloxy)oxolan-2-yl]methyl 2-methylpropanoate —— C22H31N5O7
[(2R,5R)-5-[2-(2-methylpropanoylamino)-6-oxo-1H-purin-9-yl]-3-(2-methylpropanoyloxy)oxolan-2-yl]methyl 2-methylpropanoate
—— cyclopentylmethyl 4-[3-[6-amino-9-[(2R,3S,5S)-5-(cyclopropylcarbamoyl)-3,4-dihydroxyoxolan-2-yl]purin-2-yl]prop-2-ynyl]piperidine-1-carboxylate;ethane —— C30H43N7O6
cyclopentylmethyl 4-[3-[6-amino-9-[(2R,3S,5S)-5-(cyclopropylcarbamoyl)-3,4-dihydroxyoxolan-2-yl]purin-2-yl]prop-2-ynyl]piperidine-1-carboxylate;ethane
—— O-[tert-butyl(dimethyl)silyl] (2S,3S,4R,5R)-5-[6-amino-8-(cyclohexylmethyl)purin-9-yl]-3,4-dihydroxyoxolane-2-carbothioate —— C23H37N5O4SSi
O-[tert-butyl(dimethyl)silyl] (2S,3S,4R,5R)-5-[6-amino-8-(cyclohexylmethyl)purin-9-yl]-3,4-dihydroxyoxolane-2-carbothioate
—— ethyl 3-chloro-2-[[(2S)-4-[6-(ethylcarbamoylamino)purin-9-yl]-2-(2-phenylethenyl)-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-6-yl]methoxymethyl]benzoate —— C32H33ClN6O7
ethyl 3-chloro-2-[[(2S)-4-[6-(ethylcarbamoylamino)purin-9-yl]-2-(2-phenylethenyl)-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-6-yl]methoxymethyl]benzoate
—— [(3S,4R,5R)-2-[2-amino-8-(2-methylpropanoyl)-6-oxo-1H-purin-9-yl]-4-(oxan-2-yloxy)-5-(oxan-2-yloxymethyl)oxolan-3-yl] 2-methylpropanoate —— C28H41N5O9
[(3S,4R,5R)-2-[2-amino-8-(2-methylpropanoyl)-6-oxo-1H-purin-9-yl]-4-(oxan-2-yloxy)-5-(oxan-2-yloxymethyl)oxolan-3-yl] 2-methylpropanoate
—— (3S,4R,5R)-2-(6-aminopurin-9-yl)-4-ethylsulfanyl-5-(hydroxymethyl)oxolan-3-ol —— C12H17N5O3S
(3S,4R,5R)-2-(6-aminopurin-9-yl)-4-ethylsulfanyl-5-(hydroxymethyl)oxolan-3-ol
—— 1-[(3aR,4R,6R,6aR)-4-(6-aminopurin-9-yl)-2-methoxy-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-6-yl]ethanol —— C13H17N5O5
1-[(3aR,4R,6R,6aR)-4-(6-aminopurin-9-yl)-2-methoxy-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-6-yl]ethanol
—— (3R,4R,5R)-5-(hydroxymethyl)-3-methyl-2-(8-pyrrol-3-ylidene-7H-purin-9-yl)oxolane-3,4-diol —— C15H17N5O4
(3R,4R,5R)-5-(hydroxymethyl)-3-methyl-2-(8-pyrrol-3-ylidene-7H-purin-9-yl)oxolane-3,4-diol
—— N'-[9-[(2R,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-6-oxo-1H-purin-2-yl]-N,N-dimethylmethanimidamide —— C13H18N6O4
N'-[9-[(2R,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-6-oxo-1H-purin-2-yl]-N,N-dimethylmethanimidamide
—— (2S,3S,4R,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxy-N-(6-oxonon-7-enyl)oxolane-2-carboxamide;4-nitro-N-pentyl-1,3-dihydro-2,1,3-benzoxadiazol-7-amine —— C30H42N10O8
(2S,3S,4R,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxy-N-(6-oxonon-7-enyl)oxolane-2-carboxamide;4-nitro-N-pentyl-1,3-dihydro-2,1,3-benzoxadiazol-7-amine
—— ethane;(2-oxopyrrolidin-3-yl)methyl 4-[3-[6-amino-9-[(2R,3S,5S)-5-(ethylcarbamoyl)-3,4-dihydroxyoxolan-2-yl]purin-2-yl]prop-2-ynyl]piperidine-1-carboxylate —— C28H40N8O7
ethane;(2-oxopyrrolidin-3-yl)methyl 4-[3-[6-amino-9-[(2R,3S,5S)-5-(ethylcarbamoyl)-3,4-dihydroxyoxolan-2-yl]purin-2-yl]prop-2-ynyl]piperidine-1-carboxylate
—— N-[9-[3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-6-oxo-1H-purin-2-yl]-2-methoxybenzamide —— C18H19N5O7
N-[9-[3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-6-oxo-1H-purin-2-yl]-2-methoxybenzamide
—— N-[1-[6-(cyclopentylamino)-9-[(2R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]purin-2-yl]pyrazol-4-yl]-1-(4-fluorophenyl)sulfonylformamide —— C25H27FN8O7S
N-[1-[6-(cyclopentylamino)-9-[(2R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]purin-2-yl]pyrazol-4-yl]-1-(4-fluorophenyl)sulfonylformamide
—— 4-[[9-[3,4-Dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-6-(pyridin-2-ylamino)purin-2-yl]methylcarbamoyl]benzenesulfonic acid —— C23H23N7O8S
4-[[9-[3,4-Dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-6-(pyridin-2-ylamino)purin-2-yl]methylcarbamoyl]benzenesulfonic acid
—— 5-(6-Methylpurin-9-yl)oxolane-2-carbaldehyde —— C11H12N4O2
5-(6-Methylpurin-9-yl)oxolane-2-carbaldehyde
—— N-acetyl-N-[9-[(2R,5S)-3-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-6-oxo-1H-purin-2-yl]acetamide —— C14H17N5O6
N-acetyl-N-[9-[(2R,5S)-3-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-6-oxo-1H-purin-2-yl]acetamide
—— (2R,5R)-2-[6-[(4-azidophenyl)methylamino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol —— C17H18N8O4
(2R,5R)-2-[6-[(4-azidophenyl)methylamino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol
—— [(3S,4R,5R)-2-[(2R,5R)-2-(6-aminopurin-9-yl)-4-hydroxy-5-(hydroxymethyl)oxolan-3-yl]oxy-3,4-dihydroxy-5-(hydroxymethyl)oxolan-3-yl]phosphonic acid —— C15H22N5O11P
[(3S,4R,5R)-2-[(2R,5R)-2-(6-aminopurin-9-yl)-4-hydroxy-5-(hydroxymethyl)oxolan-3-yl]oxy-3,4-dihydroxy-5-(hydroxymethyl)oxolan-3-yl]phosphonic acid
—— [6-amino-9-[(2R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]purin-2-yl]-naphthalen-1-ylmethanone —— C21H19N5O5
[6-amino-9-[(2R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]purin-2-yl]-naphthalen-1-ylmethanone
—— [(4R,6R)-4-(6-aminopurin-9-yl)-2-(2-phenylethenyl)-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-6-yl]methanol —— C19H19N5O4
[(4R,6R)-4-(6-aminopurin-9-yl)-2-(2-phenylethenyl)-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-6-yl]methanol
—— 3-amino-N-[(2S,5S)-5-[6-(dimethylamino)purin-9-yl]-4-hydroxy-2-(hydroxymethyl)oxolan-3-yl]-4-(4-methylphenyl)butanamide —— C23H31N7O4
3-amino-N-[(2S,5S)-5-[6-(dimethylamino)purin-9-yl]-4-hydroxy-2-(hydroxymethyl)oxolan-3-yl]-4-(4-methylphenyl)butanamide
—— [(2R,3R,4R,5S)-5-[[[(2R,3R,4R,5R)-2-(6-benzamidopurin-9-yl)-5-(hydroxymethyl)-4-methoxyoxolan-3-yl]oxy-(2-cyanoethoxy)phosphinothioyl]oxymethyl]-2-[6-(dibenzoylamino)purin-9-yl]-4-methyloxolan-3-yl] benzoate;methyl 3-[(2R,4R,5R)-5-(6-benzamidopurin-9-yl)-4-[2-cyanoethoxy-[di(propan-2-yl)amino]phosphanyl]oxyoxolan-2-yl]propanoate —— C82H86N18O18P2S
[(2R,3R,4R,5S)-5-[[[(2R,3R,4R,5R)-2-(6-benzamidopurin-9-yl)-5-(hydroxymethyl)-4-methoxyoxolan-3-yl]oxy-(2-cyanoethoxy)phosphinothioyl]oxymethyl]-2-[6-(dibenzoylamino)purin-9-yl]-4-methyloxolan-3-yl] benzoate;methyl 3-[(2R,4R,5R)-5-(6-benzamidopurin-9-yl)-4-[2-cyanoethoxy-[di(propan-2-yl)amino]phosphanyl]oxyoxolan-2-yl]propanoate
—— 2-[(3-amino-12-oxo-7H-benzo[a]anthracen-2-yl)amino]-9-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-1H-purin-6-one —— C28H24N6O5
2-[(3-amino-12-oxo-7H-benzo[a]anthracen-2-yl)amino]-9-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-1H-purin-6-one
—— [(2R,3R,4R,5R)-5-(6-aminopurin-9-yl)-2-(hydroxymethyl)-4-(trifluoromethylsulfonyloxy)oxolan-3-yl] trifluoromethanesulfonate —— C12H11F6N5O8S2
[(2R,3R,4R,5R)-5-(6-aminopurin-9-yl)-2-(hydroxymethyl)-4-(trifluoromethylsulfonyloxy)oxolan-3-yl] trifluoromethanesulfonate
—— N-[[(2S,3S,4R,5R)-5-[6-amino-2-(3-hydroxy-3-phenylprop-1-ynyl)purin-9-yl]-3,4-dihydroxyoxolan-2-yl]-hydroxymethyl]-N-methylformamide —— C21H22N6O6
N-[[(2S,3S,4R,5R)-5-[6-amino-2-(3-hydroxy-3-phenylprop-1-ynyl)purin-9-yl]-3,4-dihydroxyoxolan-2-yl]-hydroxymethyl]-N-methylformamide
—— (2R,3S,4R)-2-(hydroxymethyl)-5-[1-hydroxy-6-(2-phenylethylimino)purin-9-yl]oxolane-3,4-diol —— C18H21N5O5
(2R,3S,4R)-2-(hydroxymethyl)-5-[1-hydroxy-6-(2-phenylethylimino)purin-9-yl]oxolane-3,4-diol
—— 4-[[9-[4-Hydroxy-5-(hydroxymethyl)oxolan-2-yl]purin-6-yl]amino]-4-oxobutanoic acid —— C14H17N5O6
4-[[9-[4-Hydroxy-5-(hydroxymethyl)oxolan-2-yl]purin-6-yl]amino]-4-oxobutanoic acid
—— 2-[[(2S)-4-[6-(ethylcarbamoylamino)purin-9-yl]-2-(2-phenylethenyl)-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-6-yl]methoxymethyl]benzene-1,3-dicarboxylic acid —— C31H30N6O9
2-[[(2S)-4-[6-(ethylcarbamoylamino)purin-9-yl]-2-(2-phenylethenyl)-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-6-yl]methoxymethyl]benzene-1,3-dicarboxylic acid
—— N'-[6-(dimethylaminomethylideneamino)-9-[(2R,4S,5R)-5-(hydroxymethyl)-4-(9-phenylxanthen-9-yl)oxyoxolan-2-yl]purin-8-yl]-N,N-dimethylmethanimidamide —— C35H36N8O4
N'-[6-(dimethylaminomethylideneamino)-9-[(2R,4S,5R)-5-(hydroxymethyl)-4-(9-phenylxanthen-9-yl)oxyoxolan-2-yl]purin-8-yl]-N,N-dimethylmethanimidamide
—— N'-[9-[(4aR,6R,7aS)-2,2-ditert-butyl-7-[tert-butyl(dimethyl)silyl]oxy-4a,6,7,7a-tetrahydro-4H-furo[3,2-d][1,3,2]dioxasilin-6-yl]-1-methyl-6-oxopurin-2-yl]-N,N-dimethylmethanimidamide;N'-[9-[(4aR,6R,7aS)-2,2-ditert-butyl-7-[tert-butyl(dimethyl)silyl]oxy-4a,6,7,7a-tetrahydro-4H-furo[3,2-d][1,3,2]dioxasilin-6-yl]-6-oxo-1H-purin-2-yl]-N,N-dimethylmethanimidamide;N'-[9-[(1R)-1-[(2S)-butan-2-yl]oxyethyl]-1-methyl-6-oxopurin-2-yl]-N,N-dimethylmethanimidamide —— C70H122N18O12Si4
N'-[9-[(4aR,6R,7aS)-2,2-ditert-butyl-7-[tert-butyl(dimethyl)silyl]oxy-4a,6,7,7a-tetrahydro-4H-furo[3,2-d][1,3,2]dioxasilin-6-yl]-1-methyl-6-oxopurin-2-yl]-N,N-dimethylmethanimidamide;N'-[9-[(4aR,6R,7aS)-2,2-ditert-butyl-7-[tert-butyl(dimethyl)silyl]oxy-4a,6,7,7a-tetrahydro-4H-furo[3,2-d][1,3,2]dioxasilin-6-yl]-6-oxo-1H-purin-2-yl]-N,N-dimethylmethanimidamide;N'-[9-[(1R)-1-[(2S)-butan-2-yl]oxyethyl]-1-methyl-6-oxopurin-2-yl]-N,N-dimethylmethanimidamide
—— [(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-4-hydroxy-2-(hydroxymethyl)oxolan-3-yl] 3-(4-azido-2-nitrophenyl)propanoate —— C19H19N9O7
[(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-4-hydroxy-2-(hydroxymethyl)oxolan-3-yl] 3-(4-azido-2-nitrophenyl)propanoate
—— (3R,4S,5R)-2-(2,6-diaminopurin-9-yl)-5-(hydroxymethyl)-4-(4-imidazol-1-ylbutoxy)oxolan-3-ol —— C17H24N8O4
(3R,4S,5R)-2-(2,6-diaminopurin-9-yl)-5-(hydroxymethyl)-4-(4-imidazol-1-ylbutoxy)oxolan-3-ol
—— cyclobutyl 4-[3-[6-amino-9-[(2R,3S,5S)-5-(ethylcarbamoyl)-3,4-dihydroxyoxolan-2-yl]purin-2-yl]propyl]piperidine-1-carboxylate;ethane —— C27H43N7O6
cyclobutyl 4-[3-[6-amino-9-[(2R,3S,5S)-5-(ethylcarbamoyl)-3,4-dihydroxyoxolan-2-yl]purin-2-yl]propyl]piperidine-1-carboxylate;ethane
—— 2-[[(2S)-4-[6-(ethylcarbamoylamino)purin-9-yl]-2-(2-phenylethenyl)-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-6-yl]methoxymethyl]pyridine-3-carboxylic acid —— C29H29N7O7
2-[[(2S)-4-[6-(ethylcarbamoylamino)purin-9-yl]-2-(2-phenylethenyl)-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-6-yl]methoxymethyl]pyridine-3-carboxylic acid
—— (2R,4R,5R)-2-(6-anilinopurin-9-yl)-5-(hydroxymethyl)-3-methyloxolane-3,4-diol —— C17H19N5O4
(2R,4R,5R)-2-(6-anilinopurin-9-yl)-5-(hydroxymethyl)-3-methyloxolane-3,4-diol
—— 2-(4-chlorophenyl)-N-[1-[9-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-6-[[(3R)-oxolan-3-yl]amino]purin-2-yl]triazol-4-yl]acetamide —— C24H26ClN9O6
2-(4-chlorophenyl)-N-[1-[9-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-6-[[(3R)-oxolan-3-yl]amino]purin-2-yl]triazol-4-yl]acetamide
—— 2-[6-amino-9-[(2R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]purin-8-yl]sulfanyl-1-(4-azidophenyl)ethanone —— C18H18N8O5S
2-[6-amino-9-[(2R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]purin-8-yl]sulfanyl-1-(4-azidophenyl)ethanone
—— (2R,3S,4S,5R)-2-(6-aminopurin-9-yl)-3-cyclopentyloxy-5-(hydroxymethyl)oxolane-3,4-diol —— C15H21N5O5
(2R,3S,4S,5R)-2-(6-aminopurin-9-yl)-3-cyclopentyloxy-5-(hydroxymethyl)oxolane-3,4-diol