Dissertations / Theses on the topic 'Composés hétérocycliques – Synthèse'
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Dittoo, Aurélia. "Synthèse de composés hétérocycliques oxygénés et aminés." Paris 6, 2010. http://www.theses.fr/2010PA066747.
Full textMongrain, Colette. "Synthèse régiospécifique de quinones hétérocycliques azotées." Doctoral thesis, Université Laval, 1994. http://hdl.handle.net/20.500.11794/32203.
Full textQuébec Université Laval, Bibliothèque 2018
Beauchard, Anne. "Synthèse de composés hétérocycliques à visée anti-cancéreuse." La Rochelle, 2006. http://www.theses.fr/2006LAROS175.
Full textIn an effort to develope new inhibitors of kinases as anticancer agents, we synthetized original indirubins and azaindirubins substituted in position 5, 5’, 6 and 7. Because of the poor water solubility and low bioavailability, monoxime analogs were also prepared. The effect on cyclin dependant kinase, glycogene synthase kinase-3 and on the survival of human neuroblastoma SH-SY5Y cells were estimated. On the other hand, we synthetized thiazoloindolo[3,2-c]quinolin which are closed to natural alcaloid. We reinvestigated the Graebe-Ullmann condensation under micro-wave. A new scaffold 7H-4,5-diaza-benzo[de]anthracen which is structurally closed to dercitin, a marine alkaloid, was identified. The effect on breast cancers cells, potential DNA intercalating and topoisomerase inhibition were also discussed
Davion, Yann. "Synthèse de composés hétérocycliques à structure benzoxazépinone et benzoxazocinone." Orléans, 2002. http://www.theses.fr/2002ORLE2039.
Full textHenry, Laurence. "Synthèse et activité pharmacologique d'indoloquinolizinones." Montpellier 1, 1997. http://www.theses.fr/1997MON13515.
Full textMartarello, Laurent. "Synthèse d'analogues hétérocycliques de pyrido-carbazoles via la synthèse indolique de Fisher." Metz, 1996. http://www.theses.fr/1996METZ014S.
Full textSince the discovery of enhanced anti-cancer activity in 9-hydroxyellipticine compared to ellipticine itself, many compounds have been synthetised to study the effect of different substituents at other positions or of remplacement of the pyridine ring by other heterocyclic rings on their biological properties. Here, we report the synthesis of thieno-, thiazolo-, pyrazolo- and pyrimidino-carbazoles by a strategy which involves a Fischer indole synthesis on tetrahydrobenzothiophenones, tetrahydrobenzothiazolones, tetrahydroindazolones and tetrahydroquinazolones. The first part describes the synthesis of tetrahydrobenzothiophenones, tetrahydrobenzothiazolones, tetrahydroindazolones and tetrahydroquinazolones. In the second part, the synthesis of tetracyclic compounds via a Fischer indole synthesis is reported. These compounds are made directly from tetrahydrobenzothiophenones, tetrahydrobenzothiazolones, tetrahydroindazolones and tetrahydroquinazolones or from their alpha-hydroxymethylidene derivatives using a Japp-Klingemann reaction to prepare the arylhydrazones which are cyclised under acidic conditions
Rousset, Séverine. "Synthèse de composés polygéniques fonctionnels. Application à la synthèse de buténolides, de 5H-pyrrol-2-ones et d'alpha-pyrones." Tours, 2000. http://www.theses.fr/2000TOUR4014.
Full textNyffenegger, Coralie. "Synthèse de tricycles énergétiques : nouvelles structures azahétérocycliques condensées." Orléans, 2008. http://www.theses.fr/2008ORLE2033.
Full textClabaux, Emmanuelle Céline Magali. "Réactivité d'amines et synthèses hétérocycliques appliquées à la synthèse de pigments organiques." Lille 1, 2003. https://pepite-depot.univ-lille.fr/RESTREINT/Th_Num/2003/50376-2003-359.pdf.
Full textBouchikhi, Fadoua. "Synthèse de composés hétérocycliques aromatiques azotés, inhibiteurs potentiels de kinases." Phd thesis, Université Blaise Pascal - Clermont-Ferrand II, 2008. http://tel.archives-ouvertes.fr/tel-00731331.
Full textGarandeau, Jean-Marc. "Nouveaux composés hétérocycliques azotés : synthèse et relations structure-activité fongicide." Poitiers, 1997. http://www.theses.fr/1997POIT2281.
Full textLoidreau, Yvonnick. "Synthèse de composés hétérocycliques [6,5,6] polyhétéroatomiques, inhibiteurs potentiels de kinases." Rouen, 2013. http://www.theses.fr/2013ROUES001.
Full textIn this manuscript, we describe the design, synthesis and potential applications of a combinatorial library based on polyheteroatomic [6,5,6] planar tricyclic structure. Initially, a study of different synthetic ways to bicyclic [6,5] precursors was carried out. Upon completion of these scaffolds, the third heterocycle was generated by using decomposition of formamide or from the Dimroth rearrangement. More than one hundred molecules were obtained following this work. The products of this library were screened on seven families of kinases (CDK-5, GSK-3, CK-1, DYRK-1A, CK-1, EGF-R and VEGF-R) in order to determine a lead compound 87 (0. 031 nM on CK-1 and 0. 68 microM on CLK-1). A last study consisted in modulating this compound by Suzuki cross-coupling. Finally, more than two hundred molecules were synthetized and this project opens various pharmacological perspectives
Lézé, Marie-Pierre. "Synthèse et évaluation pharmacologique de composés hétérocycliques, inhibiteurs de l'aromatase." Nantes, 2005. http://archive.bu.univ-nantes.fr/pollux/show.action?id=9748e6c6-e374-413c-9689-273126104c5c.
Full textAromatase (CYP19) inhibitors are used in the treatment of hormone-dependent breast cancer in postmenopausal women. A series of indole derivatives bearing a (aryl)(azolyl)methyl side chain on C-2 or C-3 position were synthesized. In order to study the role of the position of this side chain, we prepared some analogues with (aryl)(azolyl)methyl chain fixed at C-4 to C-7 on homocycle. These compounds were obtained either by indole substitution (series 5, 7) or by building of indole ring using Leimgruber-Batcho reaction (series 4, 6). All the molecules were evaluated in vitro for antiaromatase activity and they were also tested on CYP17 inhibition to determine their selectivity. The most active target compounds were evaluated in vitro for thromboxane A2 synthase (CYP5) inhibitory activity in order to identify potent dual inhibitors CYP19/CYP5. The high level of antiaromatase activity encouraged us to separate the enantiomers of the most potent racemates by chiral HPLC
Salives, Richard. "Synthèse de composés polyhétérocycliques par réaction sur support solide." INSA de Rouen, 2001. http://www.theses.fr/2001ISAM0003.
Full textOrtega, Esteban. "Synthèse, comportement dynamique et réactivité de nouveaux thiazirconacycles." Dijon, 2003. http://www.theses.fr/2003DIJOS050.
Full textAadil, Mina. "Synthèse et réactivité de systèmes hétérocycliques à noyau isosélénazolinique, thieno et sélénopyridinique." Metz, 1992. http://docnum.univ-lorraine.fr/public/UPV-M/Theses/1992/Aadil.Mina.SMZ9224.pdf.
Full textThe syntesis and reactivity of new heterocyclic systems are described and discussed in this thesis. Two different subjects are investigated : synthesis of isoselenazolinics derivatives, synthesis of thieno and selenolopyridinics derivatives. All isoselenazolones described in the literature are benzo-condensed. With the aim to prepare non-benzocondensed isoselenazolones, we have used chloroacroleines as starting material. In one case, we are able to obtain the isoselenazolinic systems. Cyclisation of alkylidenemalonitriles by the Vilsmeier-Haack reagent afford 2-chloro-3-cyanopyridines. These compounds are used as starting material for the synthesis of new amino thieno and selenolo (2,3-b) pyridines, which are not described in the literature. The reactivity if the compounds have been studied in actylation, hydrolysis, decarboxylation and diazotation. In the same manner, cyclisation of some alkyldene cyanoacetates by the Vilsmeier-Haack reagent leads to esters of 2-chloro nicotinic acid. This route gives us the possibility to extend the synthesis to hydroxylated thieno and selenolopyridines
Girault, Yvonne. "Synthèse d'azidirines n-non substituées et d'amines fluorées." Nice, 1986. http://www.theses.fr/1986NICE4036.
Full textDoise, Muriel. "Synthèse d'oxazolo et d'imidazo(m, n-x)pyridines, pyrimidines et pyrazines." Lille 1, 1991. http://www.theses.fr/1991LIL10129.
Full textBories, Cédric. "Etude de nouvelles réactions multicomposés pour la synthèse d'hétérocycles." Aix-Marseille 3, 2005. http://www.theses.fr/2005AIX30036.
Full textOver recent years, Azaindoles have emerged as important targets for the development of new lead compounds by pharmaceutical and agrochemical industries. Although they are not widely represented in nature they constitute the central core of important biologically active alkaloids such as variolines and carbolines and can be regarded as bioisosters of indoles which are particularly abundant in nature and have a large spectrum of therapeutic activity. In this work, we studied and developed a new operationally simple and efficient methodology for the selective construction of various functionalized heterocyclic structures. After a detailed screening of the different parameters we were able to propose general and reproducible experimental conditions. Then, the scope and limitation of our approach was determined allowing access to a large functional diversity including thiopheno[3,2-b]pyridines. Finally, the last part deals with the reactivity of functionalized azaindoles as new chemical scaffolds allowing access to a series of synthetically and biologically valuable heterocycles
Jarkas, Nachwa. "Synthèse d'analogues bihétérocycliques de pyridocarbazoles à partir de 3-oxobenzo[b] furanne, sélénophène et thiophène." Metz, 1997. http://docnum.univ-lorraine.fr/public/UPV-M/Theses/1997/Jarkas.Nachwa.SMZ9716.pdf.
Full textCertain 6H-pyrido[4. 3-b][1]carbazoles, like, ellipticine, 9-methoxyellipticine and olivacine, occur as alkaloids in plants of the family apocyanaceae. These natural products, despite their apparent structural simplicity, are the subject of continuing interest because of their potential anti-cancer activity. In the last years, for example, no less than fifteen different synthetic routes to pyridocarbazoles have been investigated, this effort being largely stimulated by the desire to obtain new derivatives and analogues for pharmacological evaluation. The first objective of this work was to synthesize some new biheterocyclic analogues of ellipticines and isoellipticine by different routes : Pomeranz-fritsch cyclisation, Bischler-Napieralski method, Staudinger reaction followed by the tandem aza-Wittig/electrocyclisation strategy, thermal decomposition of azidoacrylates. All efforts to prepare these analogues are described here
Robin, Aélig. "Étude du 2,4-diamino-1-thiabutadiène : applications en synthèse hétérocyclique et nucléosidique." Nantes, 2004. http://www.theses.fr/2004NANT2041.
Full textThis work describes the reactivity of 2-amino-4-diméthylamino-1-thiabuta-1,3-diene during cyclization processes. After selective nitrogen or sulfur protection, title compound could react as azadiene or thiadiene to afford in a few steps 2-aminothiophenes, 2-aminothiopyrans, pyridines and pyrimidines. Pyrimidinic heterocycles were modified by nucleophilic substitution of methylsulfanyl group to notably prepare uracil and cytosine derivatives. This methodology approach was applied for the diastereoselective synthesis of nucleosides analogues through [4+2] cycloaddition starting from various glycosylisothiocyanates. Biological activities against Herpes simplex (HSV-1) were evaluated
Bilger, Christine. "Synthèse de nouveaux arénofurannes et nitroarénofurannes analogues hétérocycliques oxygènes de composés polycycliques cancérogènes." Paris 6, 1986. http://www.theses.fr/1986PA066448.
Full textCordonnier, Guy. "Synthèse et étude structurale d'hétérocycles condensés C5O (3,2-c) C5N apparentés à l'Eléocarpine." Lille 1, 1991. http://www.theses.fr/1991LIL10145.
Full textKirsch, Gilbert. "Synthèse, structure et réactivité de systèmes hétérocycliques à noyau thiophénique et sélénophénique et tellurophénique." Metz, 1985. http://docnum.univ-lorraine.fr/public/UPV-M/Theses/1985/Kirsch.Gilbert.SMZ8505.pdf.
Full textPique, Valérie. "Nouveaux composés associant hétérocycles et composés phénoliques : synthèse, caractérisation et étude des propriétés thérapeutiques et antioxydantes." Aix-Marseille 3, 2008. http://www.theses.fr/2008AIX30011.
Full textThe present work describes the synthesis and characterization of new potentiel antioxidant heterocycle derivatives. We have elaborated some new families of bi-heterocycle compounds. They have been synthesized by a combination of different heterocycle known for their biological activity and phenolic compounds present in wine. We have obtained new original compounds possesing very encouraging antioxidant activities
Bruel, Amélie. "Conception, synthèse et analyse de molécules hétérocycliques, inhibitrices de kinases." Nantes, 2011. http://www.theses.fr/2011NANT24VS.
Full textProtein kinases are involved in many cellular processes such as cell cycle regulation, apoptosis, neuronal functions and differentiation. Aberrant activity of these kinases has been implicated in many diseases such as cancer, diabetes or neurodegenerative diseases (Alzheimer’s disease or Parkinson’s disease for example). Search of new heterocyclic molecule as kinase’s inhibitors is one of the most intensive area of study. During the past few years, the 5H-pyridazo[4,5-b]indole scaffold, an aza-analogue of β-carboline, has found considerable pharmaceutical interest notably due to their cardiovascular activities and their use in treatment of disorder related to the dysfunction of peripheral benzodiazepine receptors over-expressed in a variety of tumors and neuropathologies. We have develop new 5H-pyridazino[4,5-b]indole derivatives in order to investigate their activities on several kinases such as cyclin-dependent kinases (CDK5), glycogen synthase kinase 3 (GSK3), DYRK1A or PI3K and on tumor cell line
Granier, Michel. "Synthèse, structure et réactivité de nitrilimines stables." Toulouse 3, 1990. http://www.theses.fr/1990TOU30125.
Full textMazières, Stéphane. "Nouveaux précurseurs d'espèces du germanium à coordinence III, II et I." Toulouse 3, 1994. https://tel.archives-ouvertes.fr/tel-00153008.
Full textLebon, Marjolaine. "Synthèse énantiospécifique de la Puupéhénone." Bordeaux 1, 2002. http://www.theses.fr/2002BOR12574.
Full textKotera, Mitsuharu. "Synthèse de composés azaspiranniques via régression d'énamines hétérocycliques fonctionnelles : synthèse formelle de la ( + ou - )-perhydrohistrionicotoxine." Rouen, 1987. http://www.theses.fr/1987ROUES018.
Full textBoeglin, Patrick. "Synthèse des nouveaux pigments et colorants hétérocycliques de structures triphenodioxazine, phtaloperinone et perimidophtalone." Mulhouse, 1998. http://www.theses.fr/1998MULH0512.
Full textColorants industry is developing nowadays new dyes and pigments either suitable for new applications (photoreprography, liquid crystals), or appropriate for the replacement of formerly used (hazardous) colorants, or possessing better technical properties (light-, weather-, migration fastness, etc). In this work, our goals were to obtain new pigments with enhanced migration fastness (insolubility) and new dyes with enhanced solubility in the application medium. In the first part we describe the synthesis of new triphenodioxazines, featuring two additonal imidazolone or pyrazinedione rings. By introduction of alkyl or aryl substituents on the nitrogen of these amide groups, we obtained several differently-colored pigments. As expected, because of their structure, their solubility in PVC is minimal. In comparison with the carbazol -derived commercial pigment, our products show a significantly improved migration-fastness , whereas the other properties remain similar. Therefore commercial use can be seriously considered. Besides, the last step of the synthesis, an oxidative cyclization, required the development of new experimental conditions. The second part deals with phtaloperinones which are used as polymer soluble dyes. To increase their solubility, we introduced alkyl substituents on the imidazolone ring. In comparison with the commercial product, our compounds display the better properties we hoped for, and, here also, practical use is expected. In the last part of our work, we descri be the synthesis and properties of some representatives of a new class of pigments the perimidophtalones, prepared by condensation of 2-methyl-1H-perimidine with an aromatic mono- or di-anhydride
Joseph, Delphine. "Synthèse de tétrahydrocarbazolones et application à la préparation d'analogues hétérocycliques des pyrido-carbazoles." Metz, 1995. http://docnum.univ-lorraine.fr/public/UPV-M/Theses/1995/Joseph.Delphine.SMZ9533.pdf.
Full textMany studies toward the synthesis of pyridocarbazoles alkaloïds like ellipticine and olivacine have been made in recent years. However, few examples of the replacement of the pyridine ring in the natural structure by other heteroaromatic systems have been described. Using the reactivity of the ketone moiety in the tetrahydrocarbazolones, we have built up several heterocycles condensed to the carbazole moiety. In the first part, we describe the preparation of the tetrahydrocarbazolones by Fischer indole synthesis, starting from cyclohexanediones or méthyl-cyclihexanediones. Studies of the indolisation conditions allowed improvement in the results of the Fischer cyclisation and also access to the methyl- and dimethyl-tetrahydrocarbazolones. In the second part, we develop the preparation of the pyridocarbazoles analogues. Thus, the synthesis of furo-, thieno-, seleno-, pyrazolo- and selenadiazolo- annelated carbazoles ares presented
Cren-Olivé, Cécile. "Synthèse, physico-chimie et analyse de flavan-3-ols." Lille 1, 2001. https://pepite-depot.univ-lille.fr/RESTREINT/Th_Num/2001/50376-2001-67.pdf.
Full textHattab, Z'hour. "Synthèse d'hétérocycles phosphorylés dérivés d'acides aminés : Application à la synthèse d'antitumoraux de nouvelle génération." Paris 13, 2010. http://www.theses.fr/2010PA132033.
Full textOxazaphosphorinanes are alkylant agents used in chemotherapy but showing undesirable effects and toxicity. On the other hand, bisphosphonates are compounds used in the treatment of osteoporosis and bone metastases. They generate some side effects and have a poor bioavailability by oral absorption, due to their poor lipophilicity. Our study consisted in synthesize phosphorylated heterocycles derivated from aminoacids called oxazaphospholidinones and their coupling with bisphosphonates in order to obtain new antitumoral molecules. They could be more efficient with less undesirable effects. In a first part, we have synthesized nitrogen-protected oxazaphospholidinones from amino-alcohols. Different protective groups have been studied : benzyl, tert-butyloxycarbonyl (Boc) or benzyloxycarbonyl (Cbz). These compounds were obtained as a mixture of two diastereoisomers (P2S,C4S and P2R,C4S ; the configuration C4S was fixed by the configuration of the starting aminoacid). They were separated by column chromatography or crystallization. Diastereoisomers were characterized by IR and NMR spectroscopies and mass spectrometry and a crystallographic study was realized. In the second part, we present the deprotection of the benzyloxycarbonyl group (Cbz) and the unsuccessful hydrogenolysis or oxidation assays of benzyl group. Lastly, coupling of bisphosphonate with protected oxazaphospholidine unfortunately failed
Lutun, Stéphane. "Synthèses d'hétérocycles à l'aide de métaux de transition : préparation d'oxadiazoles : synthèse et utilisation d'un catalyseur supporté." Lille 1, 1997. http://www.theses.fr/1997LIL10072.
Full textBochu, Christophe. "Enamides et diénamides intermédiaires clés pour la synthèse d'oxazines, thiazines et pyridines polycycliques." Lille 1, 1987. http://www.theses.fr/1987LIL10225.
Full textGeffroy, Guillaume. "Synthèse d'analogues de produits naturels par réactions de Diels-Adler hétéroatomiques." Mulhouse, 1987. http://www.theses.fr/1987MULH0060.
Full textVernhet, Claude. "Aminosilanes en synthèse organique : silylamines bêta-acétyléniques fonctionnelles pour la synthèse d'hétérocycles azotés." Montpellier 2, 1991. http://www.theses.fr/1991MON20107.
Full textFayn, Joël. "Synthèse d'hétérocycles f-alkyles par cyclo addition dipolaire-1,3." Nice, 1986. http://www.theses.fr/1986NICE4042.
Full textJanvier, Pierre. "Nouvelles réactions multicomposants pour la synthèse à haut débit d'hétérocycles et de macrocycles." Paris 11, 2002. http://www.theses.fr/2002PA112268.
Full textA new multicomponent reaction (MCR) affording 5-amino-oxazoles is reported. The reaction proceeds via imine formation followed by isocyanoacetamide addition and cyclisation of a nitrilium intermediate. Evidence of the efficiency of this reaction in term of yield and availability of the reagents is given. Versatility of 5-amino-oxazoles is also demonstrated, broadening the field of the MCR. Indeed, functional moieties of 5-amino-oxazoles (aza-diene and secondary amine) and various reagents are ideally combined to afford polysubstituted and diversified heterocyclic structures via domino processes. A four component process involving MCR and subsequently one-pot domino reaction is described, affording libraries of pyrrolo[3,4-b]pyridine-5-ones and 5,6-dihydro-furo[2,3-c]pyrrol-4-ones. A highly efficient five-component synthesis of (2,3-dihydro-isoindol-1-ones) is also described. Straightforward synthesis of macrocycles by MCR is reported. This strategy leads to biologically interesting macrocycles with two oxazoles in one step. Reactions developed in this work are highly efficient in term of yield convergence, rapidity and diversity (structures and residues). These are the conditions requested for the development of high throughput syntheses of heterocycles and macrocycles
Rivollier, Julie. "Synthèse de nouveaux composés hétérocycliques et leur application potentielle comme anti-cancéreux cutanés." Strasbourg, 2009. http://www.theses.fr/2009STRA6276.
Full textMalignant Melanoma is a serious disease that can affect each part of the population. Despite several prevention campaigns, behaviors toward sun are difficult to change. That is why the number of cases of malignant melanoma increases each year. When this disease is detected early, it can be treated by a simple chirurgical excision. However, this cancer tends to spread and make it to be a target for much invasive treatment such as radiotherapy, immunotherapy or chemotherapy. In spite of the increasing number of malignant melanoma and of the mortality rate due to the disease, none of the molecules used in chemotherapy are efficient toward this cancer. Indeed, these molecules are only palliatives measures making the mortality rate to stay high. The aim of this PhD work, done thanks to the financial support of NOVALIX, was to synthesize molecules that could show activities on malignant melanoma cells. So, different types of molecules have been synthesized, some imidazotriazinones in a limited number of steps, compounds of pyrazolodiazepane type in a 10 steps pathway and tetrahydropyrazolopyridine compounds. A methodology study had even been done on the last compounds. Biological assays have been done for about ten compounds and the results put the emphasis on the fact that a family of molecules shows interesting activity on malignant melanoma cells
Billet, Manuella. "Préparation d'amines homoallyliques par une réaction à trois composés : application à la synthèse d'hétérocycles azotés." Université Louis Pasteur (Strasbourg) (1971-2008), 2001. http://www.theses.fr/2001STR13074.
Full textCrozet, Maxime D. "Synthèse et réactivité de nouvelles pyridones polycycliques à visée thérapeutique." Aix-Marseille 3, 2002. http://www.theses.fr/2002AIX30077.
Full textThe objective of this work is the synthesis of new potentially active bi- or tricyclic pyridones, two synthetic pathways were proposed. The first one used VNS reaction starting from nitroheterocycles. It allowed to obtain 4- and 5-nitroimidazoles with a phenylsulfonyl group in β position. In the 5-nitroimidazole series, the stabilized carbanion at the [alpha] position of phenylsulfonyl group reacted with different electrophiles to give the corresponding sulfones via SN2 or SRN1 mechanisms. With diethyl ketomalonate, we discovered an original reaction which directly led to 5-nitroimidazole with diethyl methylene malonate group by elimination of PhSO3-. The second strategy to synthesize the ethylenic diesters used a SRN1 reaction between nitroheterocycles bearing a CH2Cl group in β position and the anion of the diethyl nitromalonate followed by an elimination of HNO2. The reduction of the nitro group followed by a cyclization gave to the required pyridones, which were later functionalized
Aukauloo, Ally. "Nouveaux analogues porphyriniques : synthèse et étude physicochimique de complexes métalloporphycéniques." Dijon, 1994. http://www.theses.fr/1994DIJOS053.
Full textBlanchard, Stéphanie. "Synthèse d'hétérocycles via les hétarynes : fonctionnalisation et pharmacomodulation des dihydrodipyridopyrazines." Orléans, 2001. http://www.theses.fr/2001ORLE2008.
Full textLeroy, Frédéric. "Synthèse de 1,3,2-dioxaphosphinino[M, N-X]pyridines et de pyrido[M, N-X][1,3,2]oxazaphosphinines." Lille 1, 1998. https://pepite-depot.univ-lille.fr/LIBRE/Th_Num/1998/50376-1998-15.pdf.
Full textBoulven, Manon. "Conception, synthèse et évaluation biologique de nouveaux composés hétérocycliques anticoagulants à usage rodonticide." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSEI106.
Full textTo date, commercial anticoagulants suffer from two major inconveniences: their persistence causing secondary poisoning of rodent predators and the development of many genetic mutations caused by the intensive use of these compounds. As a result, the European Union plans to prohibit the use of such compounds. Consequently, the priority task is to find an anticoagulant that can control the rodent populations without affecting their predators. The research of Dr. Adrien Montagut (PhD, 2011-2014) have led to the structure type of an anticoagulant derived from 4-hydroxycoumarin. Currently, AMR361 was tested in vitro on all VKORC1 mutations and in vivo on wild rats. It is the first AVK developed that responds to all the characteristics of the initial specification. The first part of my PhD was to complete the biological study on 4-hydroxycoumarin core by bringing functional diversity on the para position of the aromatic ring. From a biological point of view, the lengthening of the spacer arm on the side chain by use of various functions or the introduction of a dimethyl group on the methylene bridge were studied in order to analyze the effectiveness and persistence parameters. However, most of the synthesized compounds belonging to the family of 4-hydroxycoumarins are already described in a patent filed by Liphatech company in 1999. The study of new cores which are similar to the 4-hydroxycoumarin or the functionalization of the aromatic part of the 4-hydroxycoumarin has provided access to more diverse structures. These original possibilities for innovation have been introduced to circumvent existing patents
Letribot, Boris. "Synthèse et évaluation biologique de nouveaux composés hétérocycliques potentiellement inhibiteurs de protéine-kinases." Thesis, La Rochelle, 2015. http://www.theses.fr/2015LAROS002/document.
Full textDeregulation of protein kinases leads to numerous pathologies such as cancers and neurodegenerative diseases. In order to identify new scaffolds able to inhibit this proteins we synthesized new 3-alkenyl-oxindoles. By the mean of Appel’s salt chemistry, we develop a new synthetic route to this skeleton. Our approach allows variation of the substituent of the exocyclic akene which can be functionalized by heterocycles, amino-nitriles or thio-nitrile which are obtained after selective ring opening of (1,2,3)-dithiazoles. In another part, given powerful indirubin kinase inhibitory potency, we synthesized new analogs indiribunoids and isoindigoids. In both cases (3-akenyl-oxindoles from Appel’s salt chemistry and indigoids), the aromatic ring were substituted by various electron withdrawing group and nitrogen were incorporated to determinate structure activity relationship. All this 80 original 3-alkenyl-oxindoles were evaluated for their ability to inhibit kinase activity and cell proliferation
Rydzkowski, Richard. "Synthèse et réactivité de nouveaux phénols : hydroxy-8 imidazo (1,2-a) pyridine." Lille 1, 1985. http://www.theses.fr/1985LIL10022.
Full textSlassi, Abdelmalik. "Synthèse stéréosélective et énantiosélective d'hétérocycles oxygénés disubstitués : application à la synthèse de produits naturels." Lyon 1, 1990. http://www.theses.fr/1990LYO10192.
Full text