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嘧啶核苷

中文名称 英文名称 CAS号 化学式 结构式图片
—— 4-Amino-1-[(2R,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]pyrimidin-2-one; 1-[(2R,4S,5S)-4-Azido-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methyl-pyrimidine-2,4-dione; 1-(Cyclopent-3-en-1-ylmethyl)-6-(3,5-dimethylbenzoyl)-5-ethyl-pyrimidine-2,4-dione —— C39H48N10O10S
4-Amino-1-[(2R,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]pyrimidin-2-one; 1-[(2R,4S,5S)-4-Azido-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methyl-pyrimidine-2,4-dione; 1-(Cyclopent-3-en-1-ylmethyl)-6-(3,5-dimethylbenzoyl)-5-ethyl-pyrimidine-2,4-dione
—— 2-amino-9-[4-hydroxy-3-(hydroxymethyl)butyl]-1H-purin-6-one;1-[(2R,4S,5S)-4-azido-5-(hydroxymethyl)oxolan-2-yl]-5-methylpyrimidine-2,4-dione —— C20H28N10O7
2-amino-9-[4-hydroxy-3-(hydroxymethyl)butyl]-1H-purin-6-one;1-[(2R,4S,5S)-4-azido-5-(hydroxymethyl)oxolan-2-yl]-5-methylpyrimidine-2,4-dione
—— 1-[(2R,4S,5S)-4-Azido-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methyl-pyrimidine-2,4-dione; 1-(Cyclopent-3-en-1-ylmethyl)-6-(3,5-dimethylbenzoyl)-5-ethyl-pyrimidine-2,4-dione —— C31H37N7O7
1-[(2R,4S,5S)-4-Azido-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methyl-pyrimidine-2,4-dione; 1-(Cyclopent-3-en-1-ylmethyl)-6-(3,5-dimethylbenzoyl)-5-ethyl-pyrimidine-2,4-dione
—— CDIMI & ddC —— C29H33Cl2N7O5S
CDIMI & ddC
—— β-L-FddClU —— C9H10ClFN2O4
β-L-FddClU
—— Cdimi & azt —— C30H33Cl2N9O6S
Cdimi & azt
—— 2-amino-9-[(1R,4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl]-1H-purin-6-one; 1-[(2R,4S,5S)-4-azido-5-(hydroxymethyl)tetrahydrofuran-2-yl]pyrimidine-2,4-dione —— C20H24N10O6
2-amino-9-[(1R,4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl]-1H-purin-6-one; 1-[(2R,4S,5S)-4-azido-5-(hydroxymethyl)tetrahydrofuran-2-yl]pyrimidine-2,4-dione
—— 4-Amino-1-(4-azido-5-hydroxymethyl-tetrahydro-furan-2-yl)-5-fluoro-1H-pyrimidin-2-one —— C9H11FN6O3
4-Amino-1-(4-azido-5-hydroxymethyl-tetrahydro-furan-2-yl)-5-fluoro-1H-pyrimidin-2-one
—— 1-(2,3-Dideoxy-2-azido-β-L-erythro-pentofuranosyl)-5-fluorocytosine 265988-81-6 C9H11FN6O3
1-(2,3-Dideoxy-2-azido-β-L-erythro-pentofuranosyl)-5-fluorocytosine
—— Dmp 266 & azt —— C24H22ClF3N6O6
Dmp 266 & azt
—— Azt & AG1350 —— C40H54N8O8S2
Azt & AG1350
—— 2',3'-Dideoxy-N4,5'-O-dipropionylcytidine —— C15H21N3O5
2',3'-Dideoxy-N4,5'-O-dipropionylcytidine
—— 2',3'-dideoxy-N4-pivaloylcytidine —— C14H21N3O4
2',3'-dideoxy-N4-pivaloylcytidine
—— FddBrCyd —— C9H11BrFN3O3
FddBrCyd
—— methyl (2S)-2-[[[(2S,5R)-5-(4-amino-2-oxo-pyrimidin-1-yl)tetrahydrofuran-2-yl]methoxy-phenoxy-phosphoryl]amino]propanoate —— C19H25N4O7P
methyl (2S)-2-[[[(2S,5R)-5-(4-amino-2-oxo-pyrimidin-1-yl)tetrahydrofuran-2-yl]methoxy-phenoxy-phosphoryl]amino]propanoate
—— N-[1-[(2R,5S)-5-(hydroxymethyl)tetrahydrofuran-2-yl]-2-oxo-pyrimidin-4-yl]propanamide —— C12H17N3O4
N-[1-[(2R,5S)-5-(hydroxymethyl)tetrahydrofuran-2-yl]-2-oxo-pyrimidin-4-yl]propanamide
—— 2',3'-dideoxy-5'-O-pivaloylcytidine —— C14H21N3O4
2',3'-dideoxy-5'-O-pivaloylcytidine
—— 2',3'-Dideoxy-N4,5'-O-dipivaloylcytidine —— C19H29N3O5
2',3'-Dideoxy-N4,5'-O-dipivaloylcytidine
—— 2',3'-dideoxy-5'-O-propionylcytidine —— C12H17N3O4
2',3'-dideoxy-5'-O-propionylcytidine
—— AZT & Alpha-lipoic acid —— C18H27N5O6S2
AZT & Alpha-lipoic acid
—— 4-amino-5-fluoro-1-[(2S,5R)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]pyrimidin-2-one; 1-[(2R,4S,5S)-4-azido-5-(hydroxymethyl)tetrahydrofuran-2-yl]pyrimidine-2,4-dione —— C17H21FN8O7S
4-amino-5-fluoro-1-[(2S,5R)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]pyrimidin-2-one; 1-[(2R,4S,5S)-4-azido-5-(hydroxymethyl)tetrahydrofuran-2-yl]pyrimidine-2,4-dione
—— Dxg & azt —— C19H24N10O8
Dxg & azt
—— 4-amino-5-fluoro-1-[(2S,5R)-5-(hydroxymethyl)-2,5-dihydrofuran-2-yl]pyrimidin-2-one; 4-amino-1-[(2R,5S)-5-(hydroxymethyl)tetrahydrofuran-2-yl]pyrimidin-2-one —— C18H23FN6O6
4-amino-5-fluoro-1-[(2S,5R)-5-(hydroxymethyl)-2,5-dihydrofuran-2-yl]pyrimidin-2-one; 4-amino-1-[(2R,5S)-5-(hydroxymethyl)tetrahydrofuran-2-yl]pyrimidin-2-one
—— AZT & 6-Ethyl-6-phenylpyrrolo[1,2-d]pyrido[3,2-b][1,4]oxazepin-7(6H)-one —— C29H29N7O6
AZT & 6-Ethyl-6-phenylpyrrolo[1,2-d]pyrido[3,2-b][1,4]oxazepin-7(6H)-one
—— 4-amino-5-fluoro-1-[(2S,5R)-5-(hydroxymethyl)-2,5-dihydrofuran-2-yl]pyrimidin-2-one; 1-[(2R,4S,5S)-4-azido-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methyl-pyrimidine-2,4-dione —— C19H23FN8O7
4-amino-5-fluoro-1-[(2S,5R)-5-(hydroxymethyl)-2,5-dihydrofuran-2-yl]pyrimidin-2-one; 1-[(2R,4S,5S)-4-azido-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methyl-pyrimidine-2,4-dione
—— [[[(2S,3S,5R)-3-azido-5-(5-methyl-2,4-dioxo-pyrimidin-1-yl)tetrahydrofuran-2-yl]methoxy-hydroxy-phosphoryl]methyl-hydroxy-phosphoryl]methylphosphonic acid —— C12H20N5O11P3
[[[(2S,3S,5R)-3-azido-5-(5-methyl-2,4-dioxo-pyrimidin-1-yl)tetrahydrofuran-2-yl]methoxy-hydroxy-phosphoryl]methyl-hydroxy-phosphoryl]methylphosphonic acid
—— ZDV & Nelfinavir —— C42H58N8O8S
ZDV & Nelfinavir
—— ddC & Nelfinavir —— C41H58N6O7S
ddC & Nelfinavir
—— ZDV & 3TC & Nelfinavir —— C50H69N11O11S2
ZDV & 3TC & Nelfinavir
—— 3-[[(2S,3S,5R)-3-azido-5-(5-methyl-2,4-dioxo-pyrimidin-1-yl)tetrahydrofuran-2-yl]methoxy-hydroxy-phosphoryl]propylphosphonic acid —— C13H21N5O9P2
3-[[(2S,3S,5R)-3-azido-5-(5-methyl-2,4-dioxo-pyrimidin-1-yl)tetrahydrofuran-2-yl]methoxy-hydroxy-phosphoryl]propylphosphonic acid
—— methyl [[(2S,3S,5R)-3-azido-5-(5-methyl-2,4-dioxo-pyrimidin-1-yl)tetrahydrofuran-2-yl]methoxy-methoxy-phosphinothioyl]formate —— C13H18N5O7PS
methyl [[(2S,3S,5R)-3-azido-5-(5-methyl-2,4-dioxo-pyrimidin-1-yl)tetrahydrofuran-2-yl]methoxy-methoxy-phosphinothioyl]formate
—— 3-[3-[3-[(6R,8R,9R)-4-amino-9-[tert-butyl(dimethyl)silyl]oxy-6-[[tert-butyl(dimethyl)silyl]oxymethyl]-2,2-dioxo-1,7-dioxa-2lambda6-thiaspiro[4.4]non-3-en-8-yl]-5-methyl-2,6-dioxopyrimidin-1-yl]propyl]-1-[(2R,4S,5S)-4-azido-5-(hydroxymethyl)oxolan-2-yl]-5-methylpyrimidine-2,4-dione —— C37H60N8O12SSi2
3-[3-[3-[(6R,8R,9R)-4-amino-9-[tert-butyl(dimethyl)silyl]oxy-6-[[tert-butyl(dimethyl)silyl]oxymethyl]-2,2-dioxo-1,7-dioxa-2lambda6-thiaspiro[4.4]non-3-en-8-yl]-5-methyl-2,6-dioxopyrimidin-1-yl]propyl]-1-[(2R,4S,5S)-4-azido-5-(hydroxymethyl)oxolan-2-yl]-5-methylpyrimidine-2,4-dione
—— 3-[5-[3-[(1R,3R,4R)-6-amino-4-[tert-butyl(dimethyl)silyl]oxy-1-[[tert-butyl(dimethyl)silyl]oxymethyl]-8,8-dioxo-2,9-dioxa-8$l^{6}-thiaspiro[4.4]non-6-en-3-yl]-5-methyl-2,6-dioxo-pyrimidin-1-yl]pentyl]-1-[(2R,4S,5S)-4-azido-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methyl-pyrimidine-2,4-dione —— C39H64N8O12SSi2
3-[5-[3-[(1R,3R,4R)-6-amino-4-[tert-butyl(dimethyl)silyl]oxy-1-[[tert-butyl(dimethyl)silyl]oxymethyl]-8,8-dioxo-2,9-dioxa-8$l^{6}-thiaspiro[4.4]non-6-en-3-yl]-5-methyl-2,6-dioxo-pyrimidin-1-yl]pentyl]-1-[(2R,4S,5S)-4-azido-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methyl-pyrimidine-2,4-dione
—— 3-[3-[3-[(1R,3R,4R)-6-amino-4-[tert-butyl(dimethyl)silyl]oxy-1-[[tert-butyl(dimethyl)silyl]oxymethyl]-8,8-dioxo-2,9-dioxa-8$l^{6}-thiaspiro[4.4]non-6-en-3-yl]-5-methyl-2,6-dioxo-pyrimidin-1-yl]propyl]-1-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methyl-pyrimidine-2,4-dione —— C37H61N5O13SSi2
3-[3-[3-[(1R,3R,4R)-6-amino-4-[tert-butyl(dimethyl)silyl]oxy-1-[[tert-butyl(dimethyl)silyl]oxymethyl]-8,8-dioxo-2,9-dioxa-8$l^{6}-thiaspiro[4.4]non-6-en-3-yl]-5-methyl-2,6-dioxo-pyrimidin-1-yl]propyl]-1-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methyl-pyrimidine-2,4-dione
—— 3-[7-[3-[(1R,3R,4R)-6-amino-4-[tert-butyl(dimethyl)silyl]oxy-1-[[tert-butyl(dimethyl)silyl]oxymethyl]-8,8-dioxo-2,9-dioxa-8$l^{6}-thiaspiro[4.4]non-6-en-3-yl]-5-methyl-2,6-dioxo-pyrimidin-1-yl]heptyl]-1-[4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methyl-pyrimidine-2,4-dione —— C41H69N5O13SSi2
3-[7-[3-[(1R,3R,4R)-6-amino-4-[tert-butyl(dimethyl)silyl]oxy-1-[[tert-butyl(dimethyl)silyl]oxymethyl]-8,8-dioxo-2,9-dioxa-8$l^{6}-thiaspiro[4.4]non-6-en-3-yl]-5-methyl-2,6-dioxo-pyrimidin-1-yl]heptyl]-1-[4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methyl-pyrimidine-2,4-dione
—— 3-[8-[3-[(1R,3R,4R)-6-amino-4-[tert-butyl(dimethyl)silyl]oxy-1-[[tert-butyl(dimethyl)silyl]oxymethyl]-8,8-dioxo-2,9-dioxa-8$l^{6}-thiaspiro[4.4]non-6-en-3-yl]-5-methyl-2,6-dioxo-pyrimidin-1-yl]octyl]-1-[(2R,4S,5S)-4-azido-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methyl-pyrimidine-2,4-dione —— C42H70N8O12SSi2
3-[8-[3-[(1R,3R,4R)-6-amino-4-[tert-butyl(dimethyl)silyl]oxy-1-[[tert-butyl(dimethyl)silyl]oxymethyl]-8,8-dioxo-2,9-dioxa-8$l^{6}-thiaspiro[4.4]non-6-en-3-yl]-5-methyl-2,6-dioxo-pyrimidin-1-yl]octyl]-1-[(2R,4S,5S)-4-azido-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methyl-pyrimidine-2,4-dione
—— 3-[9-[3-[(1R,3R,4R)-6-amino-4-[tert-butyl(dimethyl)silyl]oxy-1-[[tert-butyl(dimethyl)silyl]oxymethyl]-8,8-dioxo-2,9-dioxa-8$l^{6}-thiaspiro[4.4]non-6-en-3-yl]-5-methyl-2,6-dioxo-pyrimidin-1-yl]nonyl]-1-[(2R,4S,5S)-4-azido-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methyl-pyrimidine-2,4-dione —— C43H72N8O12SSi2
3-[9-[3-[(1R,3R,4R)-6-amino-4-[tert-butyl(dimethyl)silyl]oxy-1-[[tert-butyl(dimethyl)silyl]oxymethyl]-8,8-dioxo-2,9-dioxa-8$l^{6}-thiaspiro[4.4]non-6-en-3-yl]-5-methyl-2,6-dioxo-pyrimidin-1-yl]nonyl]-1-[(2R,4S,5S)-4-azido-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methyl-pyrimidine-2,4-dione
—— 3-[7-[3-[(2R,4S,5S)-4-azido-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methyl-2,6-dioxo-pyrimidin-1-yl]heptyl]-1-(2-hydroxyethoxymethyl)-5-methyl-6-phenylsulfanyl-pyrimidine-2,4-dione —— C31H41N7O8S
3-[7-[3-[(2R,4S,5S)-4-azido-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methyl-2,6-dioxo-pyrimidin-1-yl]heptyl]-1-(2-hydroxyethoxymethyl)-5-methyl-6-phenylsulfanyl-pyrimidine-2,4-dione
—— 3-[7-[3-[(1R,3R,4R)-6-amino-4-[tert-butyl(dimethyl)silyl]oxy-1-[[tert-butyl(dimethyl)silyl]oxymethyl]-8,8-dioxo-2,9-dioxa-8$l^{6}-thiaspiro[4.4]non-6-en-3-yl]-5-methyl-2,6-dioxo-pyrimidin-1-yl]heptyl]-1-[(2R,4S,5S)-4-azido-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methyl-pyrimidine-2,4-dione —— C41H68N8O12SSi2
3-[7-[3-[(1R,3R,4R)-6-amino-4-[tert-butyl(dimethyl)silyl]oxy-1-[[tert-butyl(dimethyl)silyl]oxymethyl]-8,8-dioxo-2,9-dioxa-8$l^{6}-thiaspiro[4.4]non-6-en-3-yl]-5-methyl-2,6-dioxo-pyrimidin-1-yl]heptyl]-1-[(2R,4S,5S)-4-azido-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methyl-pyrimidine-2,4-dione
—— 1-(2-hydroxyethoxymethyl)-3-[6-[1-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl]-2,4-dioxo-pyrimidin-5-yl]hexyl]-5-methyl-6-phenylsulfanyl-pyrimidine-2,4-dione —— C29H38N4O9S
1-(2-hydroxyethoxymethyl)-3-[6-[1-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl]-2,4-dioxo-pyrimidin-5-yl]hexyl]-5-methyl-6-phenylsulfanyl-pyrimidine-2,4-dione
—— 1-(2-hydroxyethoxymethyl)-3-[7-[1-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl]-2,4-dioxo-pyrimidin-5-yl]heptyl]-5-methyl-6-phenylsulfanyl-pyrimidine-2,4-dione —— C30H40N4O9S
1-(2-hydroxyethoxymethyl)-3-[7-[1-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl]-2,4-dioxo-pyrimidin-5-yl]heptyl]-5-methyl-6-phenylsulfanyl-pyrimidine-2,4-dione
—— 3-[6-[3-[(1R,3R,4R)-6-amino-4-[tert-butyl(dimethyl)silyl]oxy-1-[[tert-butyl(dimethyl)silyl]oxymethyl]-8,8-dioxo-2,9-dioxa-8$l^{6}-thiaspiro[4.4]non-6-en-3-yl]-5-methyl-2,6-dioxo-pyrimidin-1-yl]hexyl]-1-[(2R,4S,5S)-4-azido-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methyl-pyrimidine-2,4-dione —— C40H66N8O12SSi2
3-[6-[3-[(1R,3R,4R)-6-amino-4-[tert-butyl(dimethyl)silyl]oxy-1-[[tert-butyl(dimethyl)silyl]oxymethyl]-8,8-dioxo-2,9-dioxa-8$l^{6}-thiaspiro[4.4]non-6-en-3-yl]-5-methyl-2,6-dioxo-pyrimidin-1-yl]hexyl]-1-[(2R,4S,5S)-4-azido-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methyl-pyrimidine-2,4-dione
—— 3-[4-[3-[(1R,3R,4R)-6-amino-4-[tert-butyl(dimethyl)silyl]oxy-1-[[tert-butyl(dimethyl)silyl]oxymethyl]-8,8-dioxo-2,9-dioxa-8$l^{6}-thiaspiro[4.4]non-6-en-3-yl]-5-methyl-2,6-dioxo-pyrimidin-1-yl]butyl]-1-[(2R,4S,5S)-4-azido-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methyl-pyrimidine-2,4-dione —— C38H62N8O12SSi2
3-[4-[3-[(1R,3R,4R)-6-amino-4-[tert-butyl(dimethyl)silyl]oxy-1-[[tert-butyl(dimethyl)silyl]oxymethyl]-8,8-dioxo-2,9-dioxa-8$l^{6}-thiaspiro[4.4]non-6-en-3-yl]-5-methyl-2,6-dioxo-pyrimidin-1-yl]butyl]-1-[(2R,4S,5S)-4-azido-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methyl-pyrimidine-2,4-dione
—— Methyl 3-[[[(2s,3s,5r)-3-azido-5-(5-methyl-2,4-dioxo-pyrimidin-1-yl)tetrahydrofuran-2-yl]methoxy-phenoxy-phosphoryl]amino]propanoate —— C20H25N6O8P
Methyl 3-[[[(2s,3s,5r)-3-azido-5-(5-methyl-2,4-dioxo-pyrimidin-1-yl)tetrahydrofuran-2-yl]methoxy-phenoxy-phosphoryl]amino]propanoate
—— 5'-O-<<<<<(phosphono)methyl>oxy>carbonyl>amino>sulfonyl>-3'-azidothymidine —— C12H17N6O11PS
5'-O-<<<<<(phosphono)methyl>oxy>carbonyl>amino>sulfonyl>-3'-azidothymidine
—— Zidovudine & Ro31-8959 & Interferon —— C48H63N11O9
Zidovudine & Ro31-8959 & Interferon
—— Zidovudine & Ro31-8959 & Interferon & Ro24-7429 —— C62H76ClN15O9
Zidovudine & Ro31-8959 & Interferon & Ro24-7429
—— 5-[6-(3,5-dimethylphenyl)sulfanyl-5-ethyl-2,4-dioxo-pyrimidin-1-yl]-N-[12-[2-[1-[(2R,5S)-5-(hydroxymethyl)tetrahydrofuran-2-yl]-2-oxo-pyrimidin-4-yl]hydrazino]dodecyl]pentanamide —— C40H61N7O6S
5-[6-(3,5-dimethylphenyl)sulfanyl-5-ethyl-2,4-dioxo-pyrimidin-1-yl]-N-[12-[2-[1-[(2R,5S)-5-(hydroxymethyl)tetrahydrofuran-2-yl]-2-oxo-pyrimidin-4-yl]hydrazino]dodecyl]pentanamide
—— Zidovudine & Ro31-8959 & Interferone & N-Butyl-deoxynojirimycin —— C58H84N12O13
Zidovudine & Ro31-8959 & Interferone & N-Butyl-deoxynojirimycin
—— ethyl 2-[[[(2R,3R,5S)-3-azido-5-(5-methyl-2,4-dioxo-pyrimidin-1-yl)tetrahydrofuran-2-yl]methoxy-[[(2S,3S,5R)-3-azido-5-(5-methyl-2,4-dioxo-pyrimidin-1-yl)tetrahydrofuran-2-yl]methoxy]phosphoryl]amino]propanoate —— C25H34N11O11P
ethyl 2-[[[(2R,3R,5S)-3-azido-5-(5-methyl-2,4-dioxo-pyrimidin-1-yl)tetrahydrofuran-2-yl]methoxy-[[(2S,3S,5R)-3-azido-5-(5-methyl-2,4-dioxo-pyrimidin-1-yl)tetrahydrofuran-2-yl]methoxy]phosphoryl]amino]propanoate