23643-36-9Relevant articles and documents
Structure-activity relationship of uridine-based nucleoside phosphoramidate prodrugs for inhibition of dengue virus RNA-dependent RNA polymerase
Wang, Gang,Lim, Siew Pheng,Chen, Yen-Liang,Hunziker, Jürg,Rao, Ranga,Gu, Feng,Seh, Cheah Chen,Ghafar, Nahdiyah Abdul,Xu, Haoying,Chan, Katherine,Lin, Xiaodong,Saunders, Oliver L.,Fenaux, Martijn,Zhong, Weidong,Shi, Pei-Yong,Yokokawa, Fumiaki
, p. 2324 - 2327 (2018/05/28)
To identify a potent and selective nucleoside inhibitor of dengue virus RNA-dependent RNA polymerase, a series of 2′- and/or 4′-ribose sugar modified uridine nucleoside phosphoramidate prodrugs and their corresponding triphosphates were synthesized and evaluated. Replacement of 2′-OH with 2′-F led to be a poor substrate for both dengue virus and human mitochondrial RNA polymerases. Instead of 2′-fluorination, the introduction of fluorine at the ribose 4′-position was found not to affect the inhibition of the dengue virus polymerase with a reduction in uptake by mitochondrial RNA polymerase. 2′-C-ethynyl-4′-F-uridine phosphoramidate prodrug displayed potent anti-dengue virus activity in the primary human peripheral blood mononuclear cell-based assay with no significant cytotoxicity in human hepatocellular liver carcinoma cell lines and no mitochondrial toxicity in the cell-based assay using human prostate cancer cell lines.
A (2 'R) -2' - deoxy -2 '- fluoro -2' - methyl urea glucoside preparation method (by machine translation)
-
Paragraph 0041, (2017/02/28)
The invention discloses a (2 'R) -2' - deoxy -2 '- fluoro -2' - methyl urea glucoside (type I) synthetic method. Cheap and easily available starting material, through the hydroxyl protection, cyclization, the links such as fluoride, obtains the type I compound. (by machine translation)
Aspartic acid based nucleoside phosphoramidate prodrugs as potent inhibitors of hepatitis C virus replication
Maiti, Munmun,Maiti, Mohitosh,Rozenski, Jef,De Jonghe, Steven,Herdewijn, Piet
, p. 5158 - 5174 (2015/05/13)
In view of a persistent threat to mankind, the development of nucleotide-based prodrugs against hepatitis C virus (HCV) is considered as a constant effort in many medicinal chemistry groups. In an attempt to identify novel nucleoside phosphoramidate analogues for improving the anti-HCV activity, we have explored, for the first time, aspartic acid (Asp) and iminodiacetic acid (IDA) esters as amidate counterparts by considering three 2′-C-methyl containing nucleosides, 2′-C-Me-cytidine, 2′-C-Me-uridine and 2′-C-Me-2′-fluoro-uridine. Synthesis of these analogues required protection for the vicinal diol functionality of the sugar moiety and the amino group of the cytidine nucleoside to regioselectively perform phosphorylation reaction at the 5′-hydroxyl group. Anti-HCV data demonstrate that the Asp-based phosphoramidates are ～550 fold more potent than the parent nucleosides. The inhibitory activity of the Asp-ProTides was higher than the Ala-ProTides, suggesting that Asp would be a potential amino acid candidate to be considered for developing novel antiviral prodrugs.
