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Dissertations / Theses on the topic 'Oxepin'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Gantert, Carla [Verfasser], and Michael [Akademischer Betreuer] Müller. "Untersuchungen zur biokatalytischen Reduktion alpha,beta-ungesättigter Carbonylverbindungen, Die hydrolytische Oxepin-CoA-Ringspaltung des aeroben Phenylessigsäure-Stoffwechsels." Freiburg : Universität, 2012. http://d-nb.info/1123466610/34.

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2

Doveston, Richard Gerard. "Oxepine-pyrimidinone natural products : the total synthesis of (±)-janoxepin." Thesis, University of York, 2012. http://etheses.whiterose.ac.uk/2397/.

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The first total synthesis of (±)-janoxepin I, an antiplasmodial oxepine-pyrimidinone natural product isolated from the fungus Aspergillus janus is described herein. Chapter 1 provides an introduction to janoxepin I and related natural products that have been reported in the literature. In Chapter 2, the available methods for the synthesis of oxepines and pyrimidinones are reviewed, before the preparation of dihydro-oxepine VI from readily available starting materials II-V is described. The enamine side-chain seen in janoxepin I was introduced by way of aldol-addition to the ketopiperazine ring

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3

Leyhane, Andrew John. "Cyclobutadiene cycloadditions : applications toward the synthesis of functionalized oxepines and guaiane natural products." Thesis, Boston College, 2008. http://hdl.handle.net/2345/1360.

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4

Xia, Shijing. "Experimental and Computational Studies for Various Organic Systems." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1204309077.

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5

Cebon, Benjamin Isaiah Martin. "Studies towards the biomimetic total synthesis of dihydrooxepin-containing epipolythiodiketopiperazine natural products." Connect to thesis, 2009. http://repository.unimelb.edu.au/10187/8526.

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SCH-64874 (5) is a fungal metabolite that inhibits the epidermal growth factor receptor (EGFR), a high-profile oncology target, with an IC50 of 1.0µg/mL. It is of particular interest because it is unlikely to inhibit the protein’s intramolecular kinase domain (as typical chemical EGFR inhibitors do), and may act instead by obstructing the receptor’s ligand binding and/or dimerisation processes.<br>In this work, the epipolythiodiketopiperazine family of natural products is reviewed, leading to a discussion of the probable biosynthetic pathways by which these complex molecules are produced in na

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6

Gallant, Pascal. "Synthesis of oxepane nucleosides by ring expansion and ring closing routes." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=103473.

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Modified nucleosides form an important class of antiviral and anticancer agents, and nucleic acids bearing modified nucleosides hold great promise as therapeutic agents. Oxepane nucleosides and nucleic acids are members of this important class of compounds. Oxepane nucleosides have a seven-membered carbohydrate ring instead of the canonical five-membered pentafuranose ring. This thesis describes work in the development of new synthetic approaches and routes in the synthesis of oxepane nucleosides. In chapter 2, the synthesis of oxepane nucleosides based on the ring expansion approach is descri

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7

Zhang, Wei. "Total synthesis of biologically relevant natural products in the diketopiperazine and oxepine series : oxidative functionalizations and oxa-Cope rearrangement studies." Thesis, Sorbonne université, 2018. http://www.theses.fr/2018SORUS433.

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La synthèse biomimétique, inspirée par des voies de biosynthèse directes et rapides, est un moyen efficace pour produire des produits complexes. Le travail de cette thèse a porté sur le développement de stratégies collectives à partir d’intermédiaires biomimétiques pour accéder rapidement à trois familles de dikétopipérazines : les gliocladrides (DKPs fonctionnalisés), les quinazolino-DKPs et les oxépino-DKPs. Les fonctionnalisations oxydantes tardives par voies chimiques et biologiques des deux premiers intermédiaires ont été envisagées dans le but d’accéder directement au gliocladride A et a

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8

Kassir, Ahmad. "Photochemical approaches for the synthesis of oxygen- and sulphur-containing heterocycles." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS065.

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Les oxétanes sont des cycles à quatre chaînons comportant un atome d’oxygène intracyclique. Le motif oxétane est présent dans la structure de nombreux produits naturels et dans un large panel de composés de synthèse pour la recherche pharmaceutique. Les thiétanes sont des cycles à quatre chaînons comportant un atome de soufre intracyclique. Le motif thiétane, est quant à lui moins répandu au sein de molécules bioactives et il n’existe à ce jour qu’un nombre restreint d’études le concernant. Ils sont tous deux prisés également comme intermédiaires de synthèse du fait de la grande réactivité int

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9

Monto, Alexander V. "Six months like oxen, six months like kings : circulatory migration from Mexico." Thesis, University of Cambridge, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239490.

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10

Tian, Zhenjiao. "Oxidation and Reduction Process for Polycyclic Aromatic Hydrocarbons and Nitrated Polycyclic Aromatic Hydrocarbons." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1228333650.

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11

Moberly, Brent Addison. ""Wayke been the oxen" plowing, presumption, and the third-estate ideal in late medieval England /." [Bloomington, Ind.] : Indiana University, 2007. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3297100.

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Thesis (Ph. D.)--Indiana University, Dept. of English, 2007.<br>Title from dissertation home page (viewed Sept. 25, 2008). Source: Dissertation Abstracts International, Volume: 69-02, Section: A, page: 0608. Adviser: Lawrence Clopper.

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12

Forssbohm, Paul [Verfasser]. "Formen des Offenen. "Der Zauberberg" von Thomas Mann, die "Oxen of the Sun"-Episode im "Ulysses" von James Joyce und "Rayuela" von Julio Cortázar (Band 3) : Die Oxen of the Sun-Episode im Ulysses von James Joyce / Paul Forssbohm." München : GRIN Verlag, 2020. http://d-nb.info/121610736X/34.

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13

Fall, Abdou. "Factors affecting feed intake, energy expenditure and work output of oxen and bulls used for draught purposes in semi-arid West Africa." Thesis, University of Edinburgh, 1996. http://hdl.handle.net/1842/29753.

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The objectives of this thesis were to i) determine the energy expenditure of draught oxen performing common farm operations, ii) establish the relationships between work on intake and digestibility of feeds by draught oxen, iii) investigate the effect of body condition before work and live weight losses during work on work output, and iv) investigate the implications of heat stress on draught oxen in semi-arid areas. The ultimate aim of this study was to generate information necessary for the design of feeding and working strategies for draught animals in semi-arid areas. To meet these objecti

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14

Forssbohm, Paul [Verfasser]. "Fomen des Offenen. "Der Zauberberg" von Thomas Mann, die Oxen of the Sun-Episode im "Ulysses" von James Joyce und "Rayuela" von Julio Cortázar (Band 1) : Notwendigkeit weltanschaulicher Bezugsrahmen / Paul Forssbohm." München : GRIN Verlag, 2020. http://d-nb.info/1206342161/34.

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15

Forssbohm, Paul [Verfasser]. "Formen des Offenen. "Der Zauberberg" von Thomas Mann, die "Oxen of the Sun"-Episode im "Ulysses" von James Joyce und "Rayuela" von Julio Cortázar (Band 4) : "Rayuela" von Julio Cortázar / Paul Forssbohm." München : GRIN Verlag, 2020. http://d-nb.info/1216107440/34.

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16

Forssbohm, Paul [Verfasser]. "Formen des Offenen. "Der Zauberberg" von Thomas Mann, die "Oxen of the Sun"-Episode im "Ulysses" von James Joyce und "Rayuela" von Julio Cortázar (Band 2) : Der Zauberberg von Thomas Mann / Paul Forssbohm." München : GRIN Verlag, 2020. http://d-nb.info/1208506706/34.

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17

Ford, Gary S. "Cornelius P. Lott and his Contribution to the Temporal Salvation of the Latter-day Saint Pioneers Through the Care of Livestock." Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd1136.pdf.

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18

Barbacena, Ivânia Luíza. "ESTUDO DE CASO SOBRE ASPECTOS DA ATIVIDADE DA PISCICULTURA NA MICROBACIA DO RIO DOS BOIS EM CEZARINA/GO." Pontifícia Universidade Católica de Goiás, 2009. http://tede2.pucgoias.edu.br:8080/handle/tede/3770.

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Submitted by admin tede (tede@pucgoias.edu.br) on 2017-10-02T13:17:26Z No. of bitstreams: 1 IVÂNIA LUÍZA BARBACENA.pdf: 807552 bytes, checksum: 31474085bccd3d0c3588bc5bb5091910 (MD5)<br>Made available in DSpace on 2017-10-02T13:17:26Z (GMT). No. of bitstreams: 1 IVÂNIA LUÍZA BARBACENA.pdf: 807552 bytes, checksum: 31474085bccd3d0c3588bc5bb5091910 (MD5) Previous issue date: 2009-09-28<br>A study of parameters that act on water quality in micro-watershed dug ponds is important because it enables a holistic approach aimed to promote better activity management and provide co

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19

Li, Sie-Rong, and 李協融. "Novel synthesis of neoflavenes, benzo[b]oxepin-5-ones and benzo[b]oxepin-5-ols via RCM from salicylaldehyde." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/22051664720829889475.

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碩士<br>高雄醫學大學<br>醫藥暨應用化學系碩士班<br>93<br>Part I In this thesis, a new synthetic approach to neoflavenes, which were biologically potential and difficult to prepare in known literatures, were described. O-allylbenzaldehyes, prepared from starting material, salicyaladeyde, were allowed to react with various aryl magnesium chloride to give corresponding alcohols. Subsequently, the resulting alcohols were oxidized by manganese(IV) oxide to give the desired ketones. Then, the resulting ketones were respectively reacted with methyl triphenylphosphonium bromide in the presence of potassium tert-butoxide

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20

Wu, Cheng-Ru, and 吳承儒. "Tribenzo[b,d,f]oxepine-Based Ambipolar Emitter." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/tm872t.

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碩士<br>國立臺灣師範大學<br>化學系<br>105<br>Six oxepine derivatives incorporsating electron excessive 9H-carbazole (or 9,9-dimethylacridane) and electron deficient cyano groups entities at the position para to oxygen of the phenyl rings containing oxygen atom have been developed successfully. The new compounds are bipolar transporting and have large HOMO/LUMO gap with purple to blue emission in the range of 397-434 nm. The photophysical property of the compounds were investigated by UV-Vis and fluorescent spectroscopic measurements, and the HOMOs were determined by photoelectron spectroscopic measurements

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21

Hsu, Ming-kun, and 許明坤. "A Novel Synthesis of Substituted 2,5-Dihydrobenzo[b]oxepines." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/01805588270398765154.

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碩士<br>高雄醫學大學<br>化學系碩士班<br>90<br>A novel synthesis of substituted 2,5-dihydrobenzo[b]oxepines was studied. Based on Claisen rearrangement, Baeyer-Villiger oxidation, and ring-closing metathesis (RCM), isovanillin was transferred into a series of substituted 2,5-dihydrobenzo[b]oxepines in good overall yields. Other appropriate substituted 2,5-dihydrobenzo[b]oxepines prepared from corresponding phenol derivatives were also described.

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22

Liao, Hsiao-Ping, and 廖曉萍. "Synthesis of Substituted 7,10-Dihydro-5-methoxy-6-alkoxy-2H-benzo[h]naphtho[1,2-b] oxecin via RCM." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/73605943660754686307.

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碩士<br>高雄醫學大學<br>藥學研究所碩士在職專班<br>93<br>In this thesis, sysnthesis of substituted oxecins, which fused with benzene and naphthalene rings, are described. The starting material, O-allylbenzylalcohols (3) was prepared from isovanillin via O-allylation, the Claisen rearrangement, alkylation and reduction. One the other, the other starting material, 2-allyl-1-naphthol (5) was prepared from O-allyloxynaphthol via Claisen rearrangement. Utilization of the mitsunobu’s reaction, the compounds (3) and (5) were dehydrated to give the desired dienes (2) with ether functionality as precursor of ring-closing

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23

Chang, Shang-Yu, and 張尚猷. "Synthesis of new 4-arylbenzo[b]oxepines from phenols via RCM." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/32544564946517048604.

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24

Chen, Chia-Yu, and 陳嘉瑜. "New Synthesis of Benzo[b] oxepines, Benzo[b] oxocines, and Their naphthalene analogues." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/34655849299774604050.

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碩士<br>高雄醫學大學<br>藥學研究所碩士在職專班<br>93<br>In this master thesis, the synthesis of substituted 3-methylbenzo[b]oxepines and benzo[b]oxocines is described. In addition, their naphthalene counterparts are synthesized and reported. Allyl aryl ethers, prepared respectively from phenols and allyl bromide, were subjected to the Claisen rearrangement to give o-allylphenols. The giving phenols were respectively reacted with chloroacetone to undergo SN2 reaction to afford 1-aryloxy-2-propanones. Followed by reactions with methylenetriphenylphosphine to undergo Wittig reaction, the resulting propanones were c

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25

Rossington, S. B., J. A. Hadfield, Steven D. Shnyder, T. W. Wallace, and K. J. Williams. "Tubulin-binding dibenz[c,e]oxepines. Part 2. 1 Structural variation and biological evaluation as tumour vasculature disrupting agents." 2017. http://hdl.handle.net/10454/11235.

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Yes<br>5,7-Dihydro-3,9,10,11-tetramethoxybenz[c,e]oxepin-4-ol 1, prepared from a dibenzyl ether precursor via Pd-catalysed intramolecular direct arylation, possesses broad-spectrum in vitro cytotoxicity towards various tumour cell lines, and induces vascular shutdown, necrosis and growth delay in tumour xenografts in mice at sub-toxic doses. The biological properties of 1 and related compounds can be attributed to their ability to inhibit microtubule assembly at the micromolar level, by binding reversibly to the same site of the tubulin αβ-heterodimer as colchicine 2 and the allocolchino

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26

"Synthetic studies of zoapatanol: construction of the oxepane system by intramolecular nitrile oxide and/or nitrone cycloaddition." Chinese University of Hong Kong, 1993. http://library.cuhk.edu.hk/record=b5887726.

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by Ching-hung Wong.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 1993.<br>Includes bibliographical references (leaves 75-78).<br>Chapter i --- Biography<br>Chapter ii --- Abstract<br>Chapter iii --- Acknowledgments<br>Chapter iv --- Abberivations<br>Chapter Chapter 1 --- Introduction<br>Chapter 1.1 --- Review on the published syntheses of Zoapatanol --- p.1<br>Chapter 1.2 --- Review on the construction of the oxepane ring --- p.7<br>Chapter 1.3 --- "Review on the intramolecular nitrone and nitrile oxide 1,3-dipolar cycloaddition" --- p.15<br>Chapter 1.3.a. --- Nitrone-olefin cycloa

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27

Rempel, Eric George. "Factors affecting the use of draft oxen : Mbeya, Tanzania." 1993. http://hdl.handle.net/1993/9690.

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28

Dey, Supriya. "Synthesis, Conformation and Glycosidic Bond Stabilities of Septanoside Sugars." Thesis, 2014. http://hdl.handle.net/2005/2898.

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Seven-membered cyclic sugars, namely, septanoses and septanosides, are less commonly known sugar homologues. Synthesis of septanoses arise an interest due to their configurational and conformational features and the attendant possibilities to explore their chemical and biological properties. Septanosides derivatives, mostly, deoxy-septanosides were synthesized, by many synthetic methodologies, such as, Knoevengal condensation, ring-closing metathesis, Bayer-Villeger oxidation and ring-expansion of 1,2-cyclopropanted glycals as key steps. Apart from septanosyl monosaccharides, septanoside con

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29

Lanier, Megan. "Method Development for the Stereoselective Synthesis of Medium-Sized Cyclic Ethers and Application to Natural Product Synthesis: Part I. Organocatalytic Oxa-Conjugate Addition for α,αÂ´-trans-Oxepanes Part II. Gold(I)-Catalyzed Alkoxylation for α,αÂ´-cis-Oxocenes Part III. Studies toward the Synthesis." Diss., 2015. http://hdl.handle.net/10161/9941.

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<p>Medium-sized cyclic ethers are challenging synthetic targets due to enthalpic and entropic barriers. Methods for the stereoselective synthesis of α,α΄-disubstituted medium-sized cyclic ethers began to appear with the discovery of naturally-occurring, ladder-shaped polycyclic ethers, such as brevetoxin B, and monocyclic ethers, such as (+)-laurencin. Despite the progress made in this field, limitations remain including competing formation of smaller ring sizes and scarcity of catalytic methods. Our aim has been to develop stereoselective syntheses for 7- and 8-membered cyclic

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30

Lin, Kuan-Li, and 林寬禮. "On the Improved Design of Wang-Chien''s "Wooden Oxen and Gliding Horse"." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/39226461342576740704.

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碩士<br>國立成功大學<br>機械工程研究所<br>83<br>The purpose of this work is to study the kinematic performance of Wang-Chien''s "Wooden Oxen and Gliding Horse" created based on his hand-on experiences, and to achieve an improve design. Historical literatures and discussions on "Wooden Oxen and Gliding Horse" are studied first. Then, the gait of oxen in different velocities is investigated by field observation and data search. The type of gait of an ox can be classified as walk, trot, or gallop based on di

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31

Brownrigg, Blake, and 畢宙. "Tagging the Herd: A Study of Selected Styles in Jin Di's Chinese Translation of the “Oxen of the Sun” Episode of Ulysses." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/gu3dr2.

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碩士<br>輔仁大學<br>跨文化研究所翻譯學碩士班<br>104<br>Abstract With the relatively new Chinese translations of James Joyce’s Ulysses, readers of Chinese in China, Taiwan and other Chinese-speaking regions now have first-language access to what is one of the most important works of modern English literature. In addition, the translations have widened the field of Joyce studies by opening the book to researchers in both the Chinese and English languages. In this study, I propose to closely analyze the styles used in Jin Di’s translation of Ulysses, specifically three of the thirty-odd styles of episode fourteen,

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