Dissertations / Theses on the topic 'Antiviral nucleosides'
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Popescu, Anne. "Racemic carbocyclic nucleosides and their anti-viral activity." Lund : Lund University Chemical Center, 1995. http://books.google.com/books?id=5vhqAAAAMAAJ.
Full textHe, Mingzhu Schneller Stewart W. "Carbocyclic C-nucleosides derived from formycin." Auburn, Ala, 2008. http://hdl.handle.net/10415/1427.
Full textShi, Houguang. "Synthesis and Antiviral Evaluation of Some 3'-Carboxymethyl-3'-deoxyadenosine Derivatives." Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd1940.pdf.
Full textHarrison, M. "Synthesis of acyclic c-nucleosides as potential antiviral agents." Thesis, Heriot-Watt University, 1988. http://hdl.handle.net/10399/1004.
Full textBouali, Abderrahime. "#beta#-D-ketofuranosyl purine nucleosides as potential antiviral agents." Thesis, University of Lincoln, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.359008.
Full textBoisvert, Suzanne 1955. "Preparation of novel heterocyclic-ring analogues of BIOLF-62 : application of 29SI NMR nucleosides and the investigation of 2,4-dinitrobenzenesulfenyl as a protecting group for ribonucleotide synthesis." Thesis, McGill University, 1986. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=75365.
Full textVarious dimethoxytritylated and t -butyldimethylsilylated derivatives of arabinoadenosine were prepared and fully characterised by $ sp1$H and $ sp{13}$C NMR spectroscopy. $ sp{29}$Si INEPT as well as $ sp{29}$Si-$ sp1{ rm H}$ correlated NMR were used to study various t -butyldimethylsilyl and triisopropylsilyl substituted ribonucleosides.
In an effort aimed at the development of new and better nucleoside protecting functions, the 2,4-dinitrobenzenesulfenyl group which is stable to both acidic and basic conditions, was used for $5 sp prime$-hydroxyl protection of ribonucleosides and its compatibility with the phosphodichoridite nucleoside coupling procedure was investigated. The nitrobenzenesulfenyl group was used in conjunction with the dimethoxytrityl group for $2 sp prime$-hydroxyl protection in the synthesis of a UpU dimer. The latter was fully characterised by enzymatic degradation and HPLC analysis of the products.
Shulyak, Tetyana S. "Exploring sinefungin analogs as potential antiviral agents." Auburn, Ala., 2005. http://repo.lib.auburn.edu/2005%20Summer/doctoral/SHULYAK_TETYANA_14.pdf.
Full textClark, Sarah Alexandra. "The synthesis of 2-fluoromethyl nucleosides as potential antiviral agents." Thesis, Queen's University Belfast, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.492322.
Full textAngell, Annette. "The design, synthesis and evaluation of some novel antiviral nucleosides." Thesis, Cardiff University, 2005. http://orca.cf.ac.uk/55384/.
Full textGould, Jayne H. M. "The synthesis of novel nucleosides and nucleotides as potential antiviral agents." Thesis, University of Reading, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.339518.
Full textThorpe, Andrew John. "Synthetic approaches to novel adenosine analogues and the synthesis of potential antiviral agents." Thesis, University of Exeter, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357951.
Full textNguyen-Ba, Nghe. "Synthesis of acyclonucleosides with potential antviral activity." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=74005.
Full textBenson, T. J. "The attempted synthesis of some novel imidazoyl and pyrrolyl n-nucleosides with potential antiviral activity." Thesis, University of Manchester, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.237245.
Full textFromentin, Emilie. "Quantitative metabolism of natural and antiviral nucleosides and nucleotides in human cells by LC-MS/MS." AgroParisTech, 2010. http://pastel.archives-ouvertes.fr/docs/00/60/59/11/PDF/These_Emilie_Fromentin.pdf.
Full textOur laboratory is specialized in drug discovery and development, more specifically in nucleoside analogue research as potential antiviral agents. The laboratory is organized in several teams, including, chemists, virologists, molecular biologists and pharmacologists. The pharmacologists study the metabolism of both FDA approved and new drugs in vitro and in humans. Amdoxovir TM is in development in our laboratory as anti-human immunodeficiency virus (HIV) and is in phase I/II clinical trial. The analytical team studies antiviral agents from cell culture work to clinical trials. To accomplish this goal, we used high performance liquid chromatography tandem mass spectrometry, which is sensitive and specific enough to detect analytes in the ppb range, in a complex biological matrix. Since only the triphosphate forms of the nucleoside analogues are active intracellularly, it was necessary to develop a method to analyze these polar compounds. The method, presented in the first chapter, was successfully used for the simultaneous quantification of the nucleotide (phosphate forms) metabolites of approved nucleoside, amdoxovir as well as for endogenous natural nucleotides in human lymphocytes and macrophages. The limits of quantification were low enough to measure nucleotide levels in the ppb range. In the second chapter, we extended our knowledge on amdoxovir metabolism in primary human lymphocytes cells. To do so, we incubated amdoxovir with nucleosides susceptible of inhibiting its phosphorylation. Then, we established the lack of interaction between amdoxovir and three other nucleosides analogues. Finally, deeper studies on endogenous natural nucleotides provided an understanding of the antiviral synergistic effects between amdoxovir and zidovudine that was demonstrated in vitro and in humans. The development and validation of a methodology to quantify amdoxovir, its metabolite and the approved drug zidovudine in plasma is presented in the first chapter. This method was applied to a proof-of-concept study conducted in 24 HIV-infected individuals
Rosa, Alvarenga Flavia Cristina. "Synthèse de nouveaux analogues de nucléosides potentiellement antiviraux." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAV068/document.
Full textThe synthetic analogues of the natural 2’-deoxyribonucleosides, linked by phosphodiester groups in nucleic acids, constitute major classes of antiviral and anticancer drugs. Such nucleosides act as “prodrugs” disturbing the biosynthesis of nucleic acids after phosphorylation. Searching for new antiviral drugs, the aim of this work was the synthesis of new modified nucleosides analogues of 2’-deoxyadenosine and -guanosine also analogues of aciclovir and its derivatives (vanciclovir, ganciclovir…) widely used for Herpes treatment. In the first works in adenine and guanine series, the cyclic analogues in which the base and a side chain introduced at position 9 of the base are linked at position 8 by an oxygen atom could not be obtained. Four cyclic analogues in the guanine series were prepared in which the base and the 9-side chain are linked at position 8 are either linked by a heteroatom (synthesized by nucleophilic substitution) or by a carbon-carbon bond (synthesized by free radical reaction). The evaluation of the antiviral activity of these compounds is underway
Solaroli, Nicola. "Investigation of antiviral and anticancer nucleoside analog substrate recognition of drosophila melanogaster and herpes virus deoxyribonucleoside kinases /." Stockholm, 2006. http://diss.kib.ki.se/2006/91-7140-922-X/.
Full textMoyle, Graeme John. "Treatment of HIV infection with didanosive and foscarnet /." Title page, contents and abstract only, 1995. http://web4.library.adelaide.edu.au/theses/09MD/09mdm938.pdf.
Full textKasthuri, Mahesh. "Nouveaux anti-viraux pour le traitement des affections associées aux virus émergents." Thesis, Montpellier 2, 2011. http://www.theses.fr/2011MON20085.
Full textIn the first chapter, we presented a brief history of antiviral chemotherapy and use of nucleos(t)ide analogues, especially acyclic nucleoside phosphonates as potential antiviral agents. In the chapter-II we have successfully synthesized ¦Â-keto, ¦Â-hydroxylamino and ¦Â-O-(benzyl)hydroxylamino ANPs of adenine and cytosine derivatives. Then (R) and (S)-¦Â-hydroxy-ANPs were prepared via chiral resolution of racemic ¦Â-hydroxy-ANPs with (S)-MPA and assignment of absolute configuration was achieved using NMR and molecular modeling studies. We also developed a methodology for the synthesis of ¦Â-azido-ANPs and those were used for the preparation of ¦Â-amino-ANPs by catalytic hydrogenation. In third chapter, we synthesized 2H-azirine and cis-aziridine-ANPs and explored their ring opening to functionalized ¦Á,¦Â-ANPs. The novel ANPs obtained during this study were evaluated for their inhibitory effect on a number of DNA and RNA viruses in cell culture experiments
Faraj, Abdesslem. "Synthèse et activité antivirale de nouveaux analogues de nucléosides didésoxygènes." Paris 5, 1991. http://www.theses.fr/1991PA05P610.
Full textZhong, Minghong. "N9 Alkylation and Glycosylation of Purines; A Practical Synthesis of 2-Chloro-2'-deoxyadenosine." Diss., CLICK HERE for online access, 2004. http://contentdm.lib.byu.edu/ETD/image/etd433.pdf.
Full textMarr, Clara Lok-Po. "Studies on human nucleoside phosphorylase." Thesis, University of Cambridge, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316743.
Full textAgrofoglio, Luigi A. "Synthese d'analogues carbocycliques de nucleosides a visee antivirale." Nice, 1993. http://www.theses.fr/1993NICE4655.
Full textBorg, Natalia. "Distribution of antiviral nucleoside analogues to brain and skin /." Stockholm, 1999. http://diss.kib.ki.se/1999/91-628-3202-6/.
Full textLE-DIGUARHER, THIERRY. "Synthese de nucleosides modifies a potentialites antivirale et anticancereuse." Paris 6, 1991. http://www.theses.fr/1991PA066549.
Full textHamon, Nadège. "Synthese de nucleosides en serie carbocyclique à visée antivirale." Thesis, Montpellier 2, 2010. http://www.theses.fr/2010MON20087/document.
Full textNucleosides analogues constitute an important family of therapeutic agents in the treatment of viral diseases. Among these compounds, carbocyclic nucleosides have interesting biological properties. The first chapter of this thesis is dedicated to a family of natural carbonucleosides, the neplanocins. We have presented their mode of action against S-adenosylhomocysteine hydrolase, as well as various syntheses of natural neplanocins and their enantiomers before reviewing their biological activities. In the second chapter, we described the first enantioselective synthesis of (¨D)-neplanocine B. The third chapter is devoted to the development of the synthesis of 3 '-halo-5¡¯-norcarbonucleosides phosphonates as well as the evaluation of their antiviral activities
Lateef, Juma. "The reactions of fluorinated ketones." Thesis, Brunel University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.286819.
Full textGallois-Montbrun, Sarah. "Etude des kinases assurant l'activation cellulaire des inhibiteurs nucléosidiques utilisés dans les traitements antiviraux." Paris 6, 2004. http://www.theses.fr/2004PA066122.
Full textCoe, Diane Mary. "Synthesis of carbocyclic nucleoside and nucleotide analogues as potential antiviral agents." Thesis, University of Exeter, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294036.
Full textPerry, Alex. "The synthesis of novel nucleoside phosphate triesters as potential antiviral agents." Thesis, University of Southampton, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243158.
Full textLeroy, Frédéric. "Synthons precurseurs de c-nucleosides-valorisation du glyoxylate de l-menthyle." Cergy-Pontoise, 1998. http://www.theses.fr/1998CERG0056.
Full textChang, Shu-Ling. "Mechanistic studies of anti-HIV-1 nucleoside phosphoramidates /." Diss., ON-CAMPUS Access For University of Minnesota, Twin Cities Click on "Connect to Digital Dissertations", 1999. http://www.lib.umn.edu/articles/proquest.phtml.
Full textVisintin, Cristina. "Studies in the synthesis of acyclic nucleoside analogues and oligonucleotides." Thesis, King's College London (University of London), 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.313052.
Full textGooding, Heather. "The synthesis of carbocyclic and bicyclic nucleoside analogues as potential antiviral agents." Thesis, University of Exeter, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357140.
Full textMEYER, PHILIPPE. "Structure et fonction de la nucleoside diphosphate kinase : interaction avec les analogues de nucleoside antiviraux." Paris 11, 2000. http://www.theses.fr/2000PA112117.
Full textOLIVEIRA, Maralise Perígolo de. "Novos nucleosídeos antivirais: síntese e avaliação biológica." Universidade Federal de Pernambuco, 2014. https://repositorio.ufpe.br/handle/123456789/17969.
Full textMade available in DSpace on 2016-10-10T12:17:42Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Tese Maralise-081214-VERSÃO corrigida biblioteca ATUALIZADA.pdf: 9951245 bytes, checksum: be34a8b4340d6e8daffcff6422e39f13 (MD5) Previous issue date: 2014-12-22
síndrome de imunodeficiência adquirida (AIDS) é uma doença infecciosa e desde que foi descoberta nos EUA, em 1981, a AIDS se espalhou rapidamente, sendo considerada uma epidemia mundial caracterizada por uma imunodeficiência severa, infecções oportunistas, neoplasia e um resultado fatal. Apesar de já ser empregado a multiterapia anti-HIV, tal tratamento farmacológico traz como inconveniente resistência já relatada aos antivirais e a toxicidade provocada por esses fármacos. Dessa forma, é um desafio para os pesquisadores a busca por fármacos mais eficazes e menos tóxicos. A meta é minimizar o impacto dessa doença no Brasil e no mundo. Para tanto, conhecendo-se as propriedades dos tionucleosídeos, objetivou-se, no presente trabalho, a síntese, a caracterização e a avaliação da atividade antiviral e antitumoral de novos análogos tionucleosídeos da 5-metiluridina. A síntese dos análogos foi efetuada a partir de 2’,2-anidrotimidina. Reação deste composto com 2-(trimetilsilil)etanotiol na presença de carbonato de potássio, seguida da mesilação das hidroxilas de 3’ e 5’ forneceu o derivado dimesilado correspondente que, por reação com benzoato de sódio forneceu o tionucleosídeo 2’, 3’-didesidro correspondente, benzoilado em C-5’. Remoção do grupo benzoíla com hidróxido de potássio/metanol forneceu o nucleosídeo insaturado 2’,3’-didesidro-2’,3’-didesoxi-2’-(2-trimetilsilil)etiltio)timidina. Substituindo-se o 2-(trimetilsilil)etanotiol pelo tiometóxido de sódio o tionucleosídeo insaturado correspondente foi obtido. Quando o derivado anidro foi submetido a reação com hidreto de sódio em DMF, seguida da reação do epóxido formado com 2-(trimetilsilil)etanotiol, obteve-se um intermediário de configuração D-xilo, contendo a cadeia sulfurada em C-3’. Reação desse composto com carbonato de difenila em DMF, em presença de bicarbonato de sódio forneceu o derivado 2’,3’-insaturado correspondente, contendo o grupo fenoxicarbonila em C-5’. Esse intermediário foi convertido no tionucleosídeo insaturado correspondente de forma semelhante à descrita para a obtenção de 2’,3’-didesidro-2’,3’-didesoxi-2’-(2-trimetilsilil)etiltio)timidina. Também nesse caso, a substituição de 2-(trimetilsilil)etanotiol pelo tiometóxido de sódio levou, ao final da síntese, ao tionucleosídeo insaturado contendo o grupo metiltio em C-3’. Os produtos finais e alguns intermediários foram avaliados em testes de atividade citotóxica contra linhagem de células tumorais A549 (linhagem humana de câncer de pulmão). O intermediário 2’, 3’-didesidro benzoilado em C-5’ e derivado 2’,3’-insaturado contendo o grupo fenoxicarbonila em C-5’ destacaram-se entre os mais ativos da série, apresentando, respectivamente CC50 32,8 μM e 85,5 μM. Os testes de atividade contra o herpes vírus simplex humano tipo I (HSV-I) estão em andamento. Os testes contra o HIV serão realizados oportunamente.
Acquired immune deficiency syndrome (AIDS) is an infectious disease and since its discovery in the USA in 1981, AIDS has spread rapidly and is considered a global epidemic characterized by severe immunodeficiency, opportunistic infections, cancer and a fatal outcome. Despite being already employed an anti-HIV multi-therapy, pharmacotherapy has drawbacks like viral resistance to antiviral drugs and drug toxicity. Thus, it is a challenge for researchers the search for more effective and less toxic drugs.The goal is to minimize the impact of this disease in Brazil and worldwide. To that end, knowing the properties of thionucleosides, the aim of the present work was the synthesis, characterization and evaluation of antiviral and antitumor activity of novel thionucleosides analogues of 5-methyluridine. Analogues synthesis was performed from 2', 2-anhydrothymidine. Reaction of this compound with 2- (trimethylsilyl)ethanethiol in the presence of potassium carbonate, followed by mesylation of hydroxyl groups at 3' and 5' provided the corresponding mesylated derivative, which, by reaction with sodium benzoate, provided the corresponding 2',3'-didehydro, benzoylated at C-5'. Removal of benzoyl group with potassium hydroxide/methanol gave the unsaturated nucleoside 2',3'- didehydro-2',3'-dideoxy-2'-(2-trimethylsilyl)ethylthio)thymidine. Replacing 2- (trimethylsilyl)ethanethiol by sodium thiomethoxide, the corresponding unsaturated thionucleoside was obtained. When the anhydro derivative was subjected to reaction with sodium hydride in DMF, followed by reaction of the epoxide formed with 2-(trimethylsilyl)ethanethiol, a D-xylo intermediate, with the side chain at C-3' was obtained. Reaction of this compound with diphenyl carbonate in DMF in the presence of sodium bicarbonate provided the corresponding 2',3'-unsaturated derivative containing phenoxycarbonyl group at C-5'. This intermediate was converted to the corresponding unsaturated thionucleoside in a similar way to that described to obtain 2', 3'-didehydro-2',3'- dideoxy-2'- (2-trimethylsilyl)ethylthio)thymidine. Also in this case, replacing 2- (trimethylsilyl)ethanethiol by sodium thiomethoxide led to the unsaturated thionucleoside containing methylthio group at C-3'. Final and some intermediate compounds were evaluated for cytotoxicity activity against tumor cell line A549 (human lung cancer strain). 2',3'-didehydro thionucleoside benzoylated at C-5' and 2',3'-unsaturated thionucleoside containing phenoxycarbonile group at C-5' derivative were the most active compounds in this series, presenting CC50 values of 32.8 μM and 85.5 μM, respectively. Tests for antiviral activity against human herpes simplex virus type I (HSV-I) are in progress. Anti-HIV screening will be conducted in the near future.
Mahler, Miriam [Verfasser], and Chris [Akademischer Betreuer] Meier. "Synthese antiviral aktiver carbocyclischer Nucleosid- und Nucleotidanaloga / Miriam Mahler. Betreuer: Chris Meier." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2013. http://d-nb.info/1038789524/34.
Full textWooding, Anita. "Antiviral efficacy of nine nucleoside reverse transcriptase inhibitors against feline immunodeficiency virus in feline peripheral blood mononuclear cells." Diss., Ludwig-Maximilians-Universität München, 2015. http://nbn-resolving.de/urn:nbn:de:bvb:19-182515.
Full textSalvetti, Raul. "Sintesi studio in vitro di nuovi analoghi nucleosidi a potenziale attivita' antivirale o antineoplastica." Montpellier 2, 2004. http://www.theses.fr/2004MON20018.
Full textDayde, Bénédicte. "Développement de phosphasucres inédits pour la synthèse d’analogues de nucléosides à visée antivirale." Thesis, Montpellier, Ecole nationale supérieure de chimie, 2010. http://www.theses.fr/2010ENCM0002.
Full textAccording to their wide chemical diversity and their implication in many biological processes, phosphorus compounds are intensively studied by organic chemists. Since 30 years, many phosphorus molecules have been developed and used for their biological properties in medicine or agrochemistry. Chemically and enzymatically stable compounds, phosphonates and phosphoninates are potential derivatives for drug design. Besides, sugars are an important biological family involved in numerous biological pathways which have widely revealed a high therapeutic potential. In this context, the first objective of these works was to develop sugar analogues with an endocyclic phosphorus atom (phosphasugars) to synthesize unpublished families of phosphinosugars and phosphonosugars. Their synthesis were carried out in 4 to 7 steps, using as key reactions : P-alkylation, Pudovik, epoxyde ring-opening reaction, cyclisation by transacetalisation or transesterification. Moreover, these phosphasugars were extended to the synthesis of new nucleoside analogues by introducing nucleobase on phosphasugar moiety. The antiviral activity of these new compounds was evaluated. Finally, a new class of acyclic nucleoside phosphonates was prepared in pyrimidinyl series. Different nucleotide analogues and prodrugs were synthesized in 6-7 steps with uracil, thymine and cytosine and evaluated against HCV and HIV
Khalil, Ahmed. "Synthèse et étude d'analogues nucléosidiques fluorés en position 2' ou 3'." Thesis, Montpellier 2, 2010. http://www.theses.fr/2010MON20070/document.
Full textIn the first chapter, we presented the human immunodeficiency virus (HIV), hepatitis B virus (HBV), and hepatitis C virus (HCV), as well as the therapies used to treat these diseases. In a second part, we discussed about the importance of the incorporation of fluorine atom into nucleoside analogues, and in a third part of this chapter, we presented the recent literature sources of the synthesis and biological activity of fluorinated nucleosides. In the second chapter, we designed and synthesized a series of 2',3'-dideoxy-3'-fluoro-threo-pyrimidine nucleosides by direct and rapid methodology and evaluated them for their inhibitory effects on a number of RNA and DNA viruses in cell culture experiments. None of these nucleoside derivatives showed any antiretroviral activity nor cytotoxicity. In the third chapter of this manuscript, we synthesized a new series of 2',3'-dideoxy-2'-fluoro-3'-(N-hydroxyimino),(N-methoxyimino) and (hydroxylamino)pyrim idine nucleosides and also evaluated for their inhibitory effects on a number of RNA and DNA viruses, without finding any activity or cytotoxicity
Billioud, Gaëtan. "Étude des performances de variants du virus de l’hépatite B." Thesis, Lyon 1, 2011. http://www.theses.fr/2011LYO10077.
Full textCurrent therapies against the hepatitis B virus (HBV) combine one or more nucleoside analogues that directly inhibit viral replication by blocking reverse transcription step. These treatments are very effective, however, faced with the emergence of viruses resistant to these treatments. These resistances are the result of the emergence and selection of mutants with mutations can be complex in both the polymerase gene (pol) and the viral envelope. The main objectives of this PhD was to study the sensitivity of resistant HBV variants vis-à-vis similar nucleos(t)ides and new compounds non-nucleos(t)idic acting against the nucleocapsid, but also compare the performance of different viral mutants to understand the process of selection of mutants that occurs in patients under therapeutic pressure. These studies have characterized the sensitivity of some resistance mutations to nucleoside analogues, to highlight the importance of the envelope changes due to resistance mutations in the process of emergence and selection of variants in the quasispecies virus and to identify new effective antiviral drugs may allow, in combination with nucleoside analogues, to greatly reduce the phenomenon of HBV resistance. Better understanding the phenomenon of resistance, the processes of emergence, selection and transmission of HBV mutants to develop the best clinical strategies of combination therapy can significantly reduce the number of people affected by this virus
Bessières, Maxime. "Synthèse métallo-catalysée de phosphonates trans-but-2'-ényl de nucléosides sous forme prodrogue." Thesis, Orléans, 2016. http://www.theses.fr/2016ORLE2054.
Full textNucleosides represents a major class of compounds in different antiviral chemotherapies. Their development from now 50 years has led to the emergence of nearly 40 compounds, to contain many epidemics and in the fight against viral infections as HIV, hepatitis or herpes. Viral infections still represent a tremendous problem in public health with the emergence of resistance to known drugs and the appearance of new viruses. In this context, it's essential to develop new antivirals with higher activity and safer. This manuscript describes organo-metallic syntheses of new modified acyclonucleoside phosphonates, on the nucleobase, the phosphonate or the acyclic spacer. Thus, the use of cross-metathesis and convergent syntheses of a broad panel of nucleic bases and modified phosphonates represents a cornerstone of our work. A particular importance was given to the use of new activations way, as ultrasound or microwave irradiation. Those processes allowed us to synthetize three new families of acyclic phosphononucleosides, which revealed a remarkable antiviral activity against some herpes viruses, as VZV or CMV
Agostoni, Valentina. "Cyclodextrin-modified metal-organic framework nanoparticles for the efficient delivery of hydrophilic antiviral and anticancer drugs." Thesis, Paris 11, 2013. http://www.theses.fr/2013PA114814.
Full textHybrid porous materials, as Metal Organic Frameworks (MOF) have been recently introduced in the drug delivery field in the attempt to combine advantages of the conventional “purely organic” or “purely inorganic” nanocarriers, such as important loading capability and controlled release.In this work the potential of biodegradable and biocompatible MOF nanoparticles made of iron trimesate (MIL-100 nanoMOF) has been investigated. A “green” synthetic procedure has been developed and validated, opening the way to the scale up synthesis of these materials for biological applications. MIL-100 nanoMOFs have been further applied to the delivery of hydrophilic drugs such as antiretroviral nucleoside analogues mono and triphosphate (azydothimidine mono and triphosphate) and the anticancer drug topotecan. Finally a new method of nanoMOFs surface modification, based on the nanoparticles coating with a β cyclodextrin-based extrenall shell, has been developed
Cahours, Xavier. "Mecanismes de separations en electrochromatographie etude du couplage electrophorese capillaire - sm - sm application a l'analyse de nucleosides antiviraux du vih." Orléans, 2000. http://www.theses.fr/2000ORLE2004.
Full textGeitmann, Matthis. "Biosensor Studies of Ligand Interactions with Structurally Flexible Enzymes : Applications for Antiviral Drug Development." Doctoral thesis, Uppsala universitet, Institutionen för naturvetenskaplig biokemi, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-5797.
Full textWooding, Anita [Verfasser], and Katrin [Akademischer Betreuer] Hartmann. "Antiviral efficacy of nine nucleoside reverse transcriptase inhibitors against feline immunodeficiency virus in feline peripheral blood mononuclear cells / Anita Wooding. Betreuer: Katrin Hartmann." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2015. http://d-nb.info/1072038404/34.
Full textZhao, Chenglong [Verfasser], and Chris [Akademischer Betreuer] Meier. "Non-Symmetrically-Masked TriPPPro Prodrugs and γ-Modified Nucleoside Triphosphate Compounds as Potential Antivirals against HIV / Chenglong Zhao ; Betreuer: Chris Meier." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2019. http://d-nb.info/1178672875/34.
Full textCosson, Fanny. "Synthèse d’analogues carbonés de la Ribavirine pour leurs activités antivirales." Thesis, Cergy-Pontoise, 2014. http://www.theses.fr/2014CERG0687/document.
Full textRibavirin is a nucleosidic analogue of guanosine composed of a ribose and a triazole ring. This antiviral compound, synthesized in 1970, exhibits an activity against a broad-range of viruses such as respiratory syncytial virus in respiratory distress children, hepatitis B and E viruses as well as some cancers and leukemia. It is especially known for its use in hepatitis C treatment in combination with Interferon. However, the efficiency of this therapy is limited to a few genotypes of the virus and leads to numerous side effects. Therefore, finding new efficient and less toxic analogs is necessary to treat the 170 million individuals that are chronically infected and at risk of developing cirrhosis and liver cancer. Thanks to a methodology of indium mediated alcynylglycosylation followed by a 1,3-dipolar cycloaddition, C-nucleosides analogs of Ribavirin have been synthesized. Among them, SRO-91, showed a comparable activity to Ribavirin towards hepatitis C virus ARN polymerase. This thesis' objective is to synthesize other C-nucleosides analogs based on SRO-91 model. Modifications have been made on the triazole ring as well as on the ribose. In regards to the ribose transformations, we have been interested into the C2' position, in particular by introducing a quaternisation with different moieties (CH3, CF3, F …) or by deoxygenating this position. This thesis describes the different strategies explored for the synthesis of some of these C-nucleosides whose antiviral activities will be studied later
Joly, Jean-Patrick. "Conception, synthèse et étude de nouvelles molécules bioactives. Propriétés antivirales et antimélanome." Thesis, Nice, 2013. http://www.theses.fr/2013NICE4129.
Full textDespite significant progress made in recent years, the fight against viral infections (AIDS, Hepatitis, etc.) and cancer remains a global health problem. This brief summary underlines the need for new compounds in order to overcome the limitations of currently available drugs. To this end, the main objective of this thesis is to address these issues by the investigation of three major research projects. We first developed new RNA ligands that selectively bind to RNA secondary structures such as the stem-loop or the stem-bulge of HIV-1 TAR RNA. These ligands interact with RNA thanks to the presence of two RNA binding domains acting in a cooperative manner: (i) a modified nucleobase that can specifically recognize an RNA base pair and (ii) basic amino acids that interact with strong affinity with surrounding free RNA nucleobases. These two patterns are connected by an aliphatic matrix (non-nucleoside ligands) or a 2-desoxyribose matrix (nucleoside-based ligands). Biophysical and biological studies were conducted in collaboration with the team of Dr. L. Briant (CEAPBS, UMR5236-CNRS) in order to study their antiviral activity and their mode of action. We next developed new bioactive molecules featuring a thiazole benzenesulfonamide scaffold to target melanoma cells resistant to B-Raf inhibitors. The modular synthesis of a large number of analogs allowed us to establish the structure/activity relationships, in collaboration with the team of Dr. S. Rocchi (C3M, INSERM U895). Finally, we developed a straightforward and convenient strategy for post-synthetic modification of oligonucleotides at the anomeric position using click chemistry
Niemiec-Plebanek, Elzbieta. "Synthesis of small molecules targeting filovirus inhibition." Thesis, Orléans, 2014. http://www.theses.fr/2014ORLE2063.
Full textThe viruses cause the problem of public health. Due to the appearance of new viruses and their resistance to existing treatments there is still relevant to develop new antivirals. Generally, the strategy to combat viral infections is based on vaccination or on the activity of small molecules, interfering with one or more biological processes participating in virus life cycle. In this context, we took an effort to design and synthesize the library of small molecules possessing anti-filovirus properties. In this research project, we were focused on the developing of compounds targeting Niemann-Pick C1 protein, cathepsin proteases and replication process. In our effort into the development of the inhibitors of Neimann-Pick C1 we prepared the series of about 70 compounds, having in common the piperazine moiety. Diverse 1,4-N,N - substituents of piperazine, differencing in a size and shape were studied. In order to obtain efficient cysteine cathepsins inhibitors, we synthesized the small library of compounds bearing 1,3,5-triazine moiety. Finally, to inhibit the virus replication by targeting SAH hydrolase, we proposed the series of carbocyclic C-nucleosides having motif of 4-aza-7,9-dideazaadenosine