15414-61-6Relevant academic research and scientific papers
Anti-flavivirus Activity of Different Tritylated Pyrimidine and Purine Nucleoside Analogues
McGuigan, Christopher,Serpi, Michaela,Slusarczyk, Magdalena,Ferrari, Valentina,Pertusati, Fabrizio,Meneghesso, Silvia,Derudas, Marco,Farleigh, Laura,Zanetta, Paola,Bugert, Joachim
, p. 227 - 235 (2016/07/07)
A series of tritylated and dimethoxytritylated analogues of selected pyrimidine and purine nucleosides were synthesized and evaluated for their in vitro inhibitory activity against two important members of the genus Flavivirus in the Flaviviridae family, the yellow fever (YFV) and dengue viruses (DENV). Among all compounds tested, the 5′-O-tritylated and the 5′-O-dimethoxytritylated 5-fluorouridine derivatives exerted potency against YFV. Interestingly in the series of purine analogues, the 5′O, N-bis-tritylated fludarabine derivative revealed strong inhibitory activity against DENV at μm concentrations, however significantly weaker potency against YFV.
Radiolabeled cyclosaligenyl monophosphates of 5-iodo-2′-deoxyuridine, 5-iodo-3′-fluoro-2′,3′-dideoxyuridine, and 3′-fluorothymidine for molecular radiotherapy of cancer: Synthesis and biological evaluation
Kortylewicz, Zbigniew P.,Kimura, Yu,Inoue, Kotaro,MacK, Elizabeth,Baranowska-Kortylewicz, Janina
scheme or table, p. 2649 - 2671 (2012/06/16)
Targeted molecular radiotherapy opens unprecedented opportunities to eradicate cancer cells with minimal irradiation of normal tissues. Described in this study are radioactive cyclosaligenyl monophosphates designed to deliver lethal doses of radiation to cancer cells. These compounds can be radiolabeled with SPECT- and PET-compatible radionuclides as well as radionuclides suitable for Auger electron therapies. This characteristic provides an avenue for the personalized and comprehensive treatment strategy that comprises diagnostic imaging to identify sites of disease, followed by the targeted molecular radiotherapy based on the imaging results. The developed radiosynthetic methods produce no-carrier-added products with high radiochemical yield and purity. The interaction of these compounds with their target, butyrylcholinesterase, depends on the stereochemistry around the P atom. IC50 values are in the nanomolar range. In vitro studies indicate that radiation doses delivered to the cell nucleus are sufficient to kill cells of several difficult to treat malignancies including glioblastoma and ovarian and colorectal cancers.
Antiviral activity of various 1-(2′-Deoxy-β- d -lyxofuranosyl), 1-(2′-Fluoro-β- d -xylofuranosyl), 1-(3′-Fluoro-β- d -arabinofuranosyl), and 2′-fluoro-2′,3′-didehydro-2′, 3′-dideoxyribose pyrimidine nucleoside analogues against duck hepatitis B virus (DHBV) and human hepatitis B virus (HBV) replication
Srivastav, Naveen C.,Shakya, Neeraj,Mak, Michelle,Agrawal, Babita,Tyrrell, D. Lorne,Kumar, Rakesh
experimental part, p. 7156 - 7166 (2010/12/19)
Despite the existence of successful vaccine and antiviral therapies, infection with hepatitis B virus (HBV) continues to be a major global cause of acute and chronic liver disease and high mortality. We synthesized and evaluated several lyxofuranosyl, 2′-fluoroxylofuranosyl, 3′- fluoroarabinofuranosyl, and 2′-fluoro-2′,3′-didehydro- 2′,3′-dideoxyribose pyrimidine nucleoside analogues for antiviral activities against hepatitis B virus. Among the compounds examined, 1-(2-deoxy-β-d-lyxofuranosyl)thymine (23), 1-(2-deoxy-β-d- lyxofuranosyl)-5-trifluoromethyluracil (25), 1-(2-deoxy-2-fluoro-β-d- xylofuranosyl)uracil (38), 1-(2-deoxy-2-fluoro-β-d-xylofuranosyl)thymine (39), 2′,3′-dideoxy-2′,3′-didehydro-2′- fluorothymidine (48), and 2′,3′-dideoxy-2′,3′-didehydro- 2′-fluoro-5-ethyluridine (49) were found to possess significant anti-HBV activity against DHBV in primary duck hepatocytes with EC50 values of 4.1, 3.3, 40.6, 3.8, 0.2, and 39.0 μM, respectively. Compounds 23, 25, 39, 48, and 49 (EC50 = 41.3, 33.7, 19.2, 2.0-4.1, and 39.0 μM, respectively) exhibited significant activity against wild-type human HBV in 2.2.15 cells. Intriguingly, 25, 39, 48, and 49 retained sensitivity against lamivudine-resistant HBV containing a single mutation (M204I) and 48 emerged as an effective inhibitor of drug-resistant HBV with an EC50 of 4.1 μM. In contrast, 50% inhibition could not be achieved by lamivudine at 44 μM concentration in the drug-resistant strain. The compounds investigated did not show cytotoxicity to host cells up to the highest concentrations tested.
Uridine derivatives as antiviral drugs against a flaviviridae, especially HCV
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Page/Page column 11; 20, (2008/06/13)
The invention relates to the use of an uridine derivative of formula (I): wherein R1 represents monohalogenated alkynyl or dihalogenated alkenyl;R2 is chosen from among hydrogen, hydroxyl, -O-alkyl, -O-CO-alkyl and halogen;R3 is chosen from among hydrogen, hydroxyl, -O-alkyl, -O-CO-alkyl, halogen, -SH, -S-alkyl and N3; andR4 is chosen from among hydroxyl, -O-alkyl, -O-CO-alkyl, -O-phosphate, -O-diphosphate, -O-triphosphate and -O-phosphonate, as well as its possible tautomers, its possible pharmaceutically acceptable addition salts with an acid or a base, and its N-oxide forms, for the preparation of a drug having antiviral activity against a Flaviviridae.
Synthesis and in vitro anti-mycobacterial activity of 5-substituted pyrimidine nucleosides
Johar, Monika,Manning, Tracey,Kunimoto, Dennis Y.,Kumar, Rakesh
, p. 6663 - 6671 (2007/10/03)
Mycobacterium tuberculosis and Mycobacterium avium infections cause the two most important mycobacterioses, leading to increased mortality in patients with AIDS. Various 5-substituted 2′-deoxyuridines, uridines, 2′-O-methyluridine, 2′-ribofluoro-2′-deoxyuridines, 3′-substituted-2′,3′-dideoxy uridines, 2′,3′- dideoxyuridines, and 2′,3′-didehydro-2′,3′- dideoxyuridines were synthesized and evaluated for their in vitro inhibitory activity against M. bovis and M. avium. 5-(C-1 Substituted)-2′- deoxyuridine derivatives emerged as potent inhibitors of M. avium (MIC 90 = 1-5 μg/mL range). The nature of C-5 substituents in the 2′-deoxyuridine series appeared to be a determinant of anti-mycobacterial activity. This new class of inhibitors could serve as useful compounds for the design and study of new anti-tuberculosis agents.
Synthesis and Antiviral Evaluation of Some 3′-Fluoro Bicyclic Nucleoside Analogues
McGuigan, Christopher,Carangio, Antonella,Snoeck, Robert,Andrei, Graciela,De Clercq, Erik,Balzarini, Jan
, p. 1 - 5 (2007/10/03)
The synthesis of 3′-fluoro analogues of recently discovered highly potent anti-VZV furanopyrimidine deoxynucleosides (BCNAs) is herein reported, for both the alkyl and alkylphenyl series. The compounds are tested against a range of herpes viruses and disp
3'-Amino-2',3'-dideoxyribonucleosides of some pyrimidines: Synthesis and biological activities
Krenitsky,Freeman,Shaver,Beacham III,Hurlbert,Cohn,Elwell,Selway
, p. 891 - 895 (2007/10/02)
3'-Amino-2',3'-dideoxyribonucleosides of thymine, uracil, and 5-iodouracil (1-3) were synthesized from the corresponding 2'-deoxyribonucleosides via the threo-3'-chloro and the erythro-3'-azido derivatives. Corresponding aminonucleosides of 5-bromouracil, 5-chlorouracil, and 5-fluorouracil (4-6) were synthesized enzymatically with 3'-amino-2',3'-dideoxythymidine as the aminopentosyl donor and thymidine phosphorylase (EC 2.4.2.4) as the catalyst. 3'-Amino-2',3'-dideoxycytidine (7) was synthesized by amination of the 3'-azido precursor of 3'-amino-2',3'-dideoxyuridine. The biological activity of 3'-amino-2',3'-dideoxy-5-fluorouridine (6) was notable among this group of aminonucleosides. It had an ED50 of 10 μM against adenovirus and was not appreciably cytotoxic to mammalian cells in culture. It also had activity against some Gram-positive bacteria but not against a variety of Gram-negative bacteria. The other aminonucleosides (1-5 and 7) lacked or exhibited weak antiviral and antibacterial activities. The only compounds in this group that were appreciably toxic to mammalian cells in culture were the thymidine and deoxycytidine analogues (1 and 7).
