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Dissertations / Theses on the topic 'Alkaloid synthesis'

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Published: 4 June 2021

Last updated: 25 July 2025

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1

Mathews, C. J. "Alkaloid synthesis." Thesis, University of Oxford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.238202.

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2

Atkinson, Jonathan D. M. "Alkaloid synthesis." Thesis, University of Oxford, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302885.

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3

Ali, Naji M. "Studies in alkaloid synthesis." Thesis, University of East Anglia, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327933.

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4

Callaghan, Owen. "Synthetic and mechanistic studies in free radical." Thesis, University of Strathclyde, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366957.

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5

Murphy, James P. "Synthesis of azabicyclic intermediates for alkaloid synthesis." Thesis, Queen's University Belfast, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.394528.

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6

Boynton, Carole M. "Alkaloid synthesis via novel azabicycles." Thesis, Sheffield Hallam University, 1988. http://shura.shu.ac.uk/19384/.

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A basic introduction to pyrrolizidine and indolizidine alkaloids has been described along with a selection of recent syntheses of the said compounds. Cycloalkene synthesis by intramolecular Wittig reaction has been reviewed and we describe the utility of this strategy in the formation of nitrogen-bridgehead bicycles which can then be used in alkaloid synthesis. Our initial studies on the viability of this strategy in the synthesis of fused pyrrolidone systems employed a Wittig reaction between 5-acetylpyrrolidin-2-one and vinylphosphonium salts. A comparison was made between three different vi

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7

Antropow, Alyssa Hope. "Synthesis and anticancer evaluation of agelastatin alkaloid derivatives and enantioselective total synthesis of aspidosperma alkaloids." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/118214.

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Thesis: Ph. D. in Organic Chemistry, Massachusetts Institute of Technology, Department of Chemistry, 2018.<br>Cataloged from PDF version of thesis. Vita.<br>Includes bibliographical references.<br>I. Synthesis and Evaluation of Agelastatin Derivatives as Potent Modulators for Cancer Invasion and Metastasis The synthesis of new agelastatin alkaloid derivatives and their anticancer evaluation in the context of the breast cancer microenvironment is described. A variety of Ni -alkyl and C5-ether agelastatin derivatives were accessed via application of our strategy for convergent imidazolone synthe

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8

Lam, Kwun Ting. "Chiral acetylenic sulfoxide in asymmetric alkaloid synthesis." HKBU Institutional Repository, 2004. http://repository.hkbu.edu.hk/etd_ra/509.

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9

Bennett, P. A. R. "Synthetic approaches to the alkaloid himbacine." Thesis, University of Oxford, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233479.

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10

Börger, Carsten, Micha P. Krahl, Margit Gruner, Olga Kataeva, and Hans-Joachim Knölker. "First total synthesis of the biscarbazole alkaloid oxydimurrayafoline." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-139201.

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We report the first total synthesis of oxydimurrayafoline via nucleophilic substitution at the benzylic position at C-3 of the carbazole framework<br>Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich

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11

Roe, Caroline. "1-arylcyclohexadienyliron complexes in alkaloid in synthesis." Thesis, University of East Anglia, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.445209.

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12

Jones, Clifford David. "Asymmetric synthesis of the frog alkaloid epibatidine." Thesis, University of Nottingham, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.262966.

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13

Ewin, Richard Andrew. "Applications of radical chemistry to alkaloid synthesis." Thesis, King's College London (University of London), 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.261811.

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14

Tholen, Niels T. H. "New sulfone-assisted strategies for alkaloid synthesis." Thesis, Imperial College London, 2010. http://hdl.handle.net/10044/1/6081.

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This thesis is divided into three chapters. Chapter 1 provides brief reviews on the subjects of previous total syntheses of suaveoline, alstonerine and cytisine. In addition, a review concerning the Pictet–Spengler reaction mechanism and its application to the total syntheses of isoquinoline containing natural products has been included as well. Chapter 2 focuses on the research findings in the past three years. Two routes were investigated towards the total synthesis of (±)-suaveoline involving the decarboxylative Claisen rearrangement (dCr), N-sulfonylaziridine chemistry and subsequent nucle

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15

Lu, Pengfei. "Aziridine-metathesis based approaches to alkaloid synthesis." Thesis, Imperial College London, 2009. http://hdl.handle.net/10044/1/4392.

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The aim of the project is to synthesise (–)-morphine utilising aziridine and metathesis chemistry. The thesis is divided into three chapters. Chapter 1 provides brief reviews on the subjects of total synthesis of morphine; ringrearrangement metathesis (RRM) and regioselective ring-opening of aziridines. Chapter 2 focuses on the research findings in the past three years. Two routes, A and B, were investigated in attempts to synthesise morphine (Scheme 1). In route A, sulfonyl cyclopentene II was prepared from ring-closing metathesis of a diene precursor, which was synthesised from lithiated cin

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16

Börger, Carsten, Micha P. Krahl, Margit Gruner, Olga Kataeva, and Hans-Joachim Knölker. "First total synthesis of the biscarbazole alkaloid oxydimurrayafoline." Royal Society of Chemistry, 2012. https://tud.qucosa.de/id/qucosa%3A27812.

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We report the first total synthesis of oxydimurrayafoline via nucleophilic substitution at the benzylic position at C-3 of the carbazole framework.<br>Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.

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17

Leach, Stuart Grahame. "Diversity-Oriented Synthesis of Alkaloid-like Unnatural Products." Thesis, University of Leeds, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.485593.

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This thesis describes the development of a novel methodology to allow the synthesis of skeletally diverse alkaloid-like unnatural compounds. Enantiomerically enriched building blocks are iteratively assembled onto a purification handle using reliable coupling reactions. Subsequently, ring-opening-ring-closing metathesis cascade reactions are used as a complexity generating step to restitch the molecular framework. Chapter 1 introduces the concept of diversity-oriented synthesis, with particular emphasis on strategies used to introduce skeletal diversity. The conceptual idea behind the project

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18

Murrison, Sarah Louise. "Diversity-oriented synthesis of polycyclic alkaloid-like compounds." Thesis, University of Leeds, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.531520.

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19

Owen, David Alan. "Aryl substituted cyclohexanienyl iron complexes in alkaloid synthesis." Thesis, University of East Anglia, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.278063.

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20

Ouali, Dehimi. "Enantioselective synthesis of novel corynanthe indole alkaloid synthons." Thesis, University of Salford, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315329.

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21

Ho, Tim Chien Ting. "Novel applications of aryl radicals in alkaloid synthesis." Thesis, King's College London (University of London), 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.264981.

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22

Pett, Richard. "Total synthesis of the macroline-related alkaloid (±)-alstonerine." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/17842.

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This thesis examines the total synthesis of the macroline-related indole alkaloid alstonerine and related compounds. It is divided into three sections: The first section provides a review of the total synthesis efforts reported by Cook, Martin, Kuethe, and Kwon, as well previous work within the Craig group. The second section discusses the results of our investigations. The optimisation of the synthesis of key intermediate α,β-unsaturated lactam alcohol via directed-aziridine ring-opening is presented in detail. Our progress towards the synthesis of macroline-related alkaloids macroline, alsto

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23

Jaunbergs, Janis. "AROMATIC RADICAL CATION COUPLING IN BIOMIMETIC ALKALOID SYNTHESIS." University of Cincinnati / OhioLINK, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1024673469.

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24

Schmidt, Michael Anthony 1980. "The development of new synthetic strategies and methodologies for complex alkaloid total synthesis : a concise synthesis of (+)-chimonanthine, (+)-WIN 64821, (-)-ditryptophenaline and related alkaloids." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/43773.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 2008.<br>Vita.<br>Includes bibliographical references.<br>I. The Development of a General Strategy Towards Dimeric Hexahydropyrroloindole Alkaloids. A Concise Total Synthesis of (+)-Chimonanthine, (+)-Folicanthine and (-)Calycanthine. An efficient and convergent strategy for the synthesis of dimeric hexahydropyrroloindole alkaloids is described. The simultaneous formation of the vicinal quaternary stereocenters using a reductive dimerization reaction provides gram-scale access to an optically active key intermediate em

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25

Barbey, Sabine. "A novel approach to the ergot alkaloid skeleton." Thesis, University of Reading, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294855.

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26

Varela, Ann. "Application of lithiantion-borylation methodology to alkaloid synthesis : total synthesis of (-) -stemaphylline." Thesis, University of Bristol, 2017. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.730870.

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27

Mosts, R. C. "Studies in the synthesis of piperidine alkaloids." Thesis, University of Essex, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.379495.

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28

Romeril, Stuart P. "Synthesis and structural elucidation of the Bis-3-alkylpyridine alkaloid pyrinodemin A and other monomeric alkaloids." Thesis, University of Oxford, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.288526.

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29

Humphrey, G. R. "Approaches towards the total synthesis of the ephedradine alkaloids." Thesis, University of Southampton, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378264.

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30

Williams, Rebecca Louise. "Synthesis and applications of structurally modified cinchona alkaloid derivatives." Thesis, University of Leicester, 2013. http://hdl.handle.net/2381/28188.

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Quinidinone was formed diastereoselectively from quinine and reacted with a variety of nucleophiles to produce a series of 9-substituted quinidine analogues. The configuration at the C9 position was determined to be (S) by X-ray crystallography, which supports the proposed chelation control mechanism of nucleophilic addition to quinidinone. Hydrogenation of the C10-C11 double bonds of the new compounds also allowed access to a series of 9-substituted-10,11-dihydroquinidine derivatives. 8-Fluoroquinidinone and 8-fluoroquininone were prepared from quinidinone, and both were reacted independently

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31

Ferreira, Jasmin. "Asymmetric Total Synthesis of the Pentacyclic Indole Alkaloid (+)-Tacamonine." Master's thesis, Faculty of Science, 2019. http://hdl.handle.net/11427/31346.

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(+)-Tacamonine, a natural product isolated from the Central African plant Tabernaemontana eglandulosa, belongs to the relatively new tacaman class of pentacyclic monoterpenoid indole alkaloids. Its close structural similarity to the potent cerebral vasodilator (-)-vincamone has promoted several efforts towards its synthesis, culminating in the appearance of two asymmetric and seven racemic syntheses in the literature. This dissertation details the successful execution of our strategy for the concise, highly-efficient, asymmetric total synthesis of (+)-tacamonine. Chapter 1 serves as an introdu

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32

Vernon, Peter G. "The synthesis of (±)-anatoxin-a." Thesis, University of Bath, 1988. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.379052.

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33

Hollinshead, S. P. "Enantiospecific approaches to indole alkaloids." Thesis, University of York, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.379030.

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34

Smith, Peter Duncan. "Synthesis of pipecolic acid derivatives via aza-Diels-Alder reactions." Thesis, Heriot-Watt University, 2000. http://hdl.handle.net/10399/552.

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35

Rycroft, A. D. "Chemistry of diazonium tetraflouroborates : Studies on the enantioselective synthesis of lycorine." Thesis, Teesside University, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384639.

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36

Wingfield, M. "A novel approach to the total synthesis of corynanthe indole alkaloids via cyclopentanoid intermediaries." Thesis, University of Manchester, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374789.

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37

Williams, Colin Stephen. "An enantioselective synthesis of substituted 1,2,3,4,5,6-hexahydro-2,6-methano-3-benzazocines." Thesis, University of Bath, 1990. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.278236.

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38

McGowan, Amanda Dawn. "Studies towards the total synthesis of strychnine." Thesis, University of Sussex, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.324188.

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39

Dagenais, Christine. "Studies directed towards the synthesis of Sceletium alkaloid A-4." Thesis, University of Ottawa (Canada), 1988. http://hdl.handle.net/10393/5173.

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40

Jenner, Chloe Rachel. "Cinchona Alkaloid-Mediated Asymmetric Synthesis of Amino Acids and Aziridines." Thesis, Imperial College London, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.503815.

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41

Bungard, Christopher James. "Total synthesis of the 7-3'-linked naphthylisoquinoline alkaloid ancistrocladidine." Thesis, University of Canterbury. Chemistry, 2001. http://hdl.handle.net/10092/6009.

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This thesis describes the first total synthesis of ancistrocladidine, a member of the naphthylisoquinoline class of natural products. In Chapter 1 the synthetic challenges presented by the naphthylisoquinoline alkaloids are discussed and strategies that have been adopted in previous syntheses of naphthylisoquinoline alkaloids are overviewed. Chapter 2 identifies 6-alkoxybenzocyclobutenones as useful precursors to the naphthalene core of the naphthylisoquinoline alkaloids. An efficient preparation of 6-alkoxybenzocyclobutenones is developed. Following this, these compounds are utilised in the

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42

Tickner, Christopher Alan. "Alkaloid catalysed addition to ketenes : a method for asymmetric synthesis." Thesis, University of Nottingham, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.416878.

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43

Baxter, George. "Synthesis of pyrolizidine alkaloid analogues as potential anti-tumour agents." Thesis, University of Glasgow, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.267930.

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44

Parker, Ashley Stuart. "Photochemical approaches to the synthesis of the indole alkaloid ibogamine." Thesis, University of Bristol, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.427907.

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45

Qu, Tao. "Studies towards the total synthesis of the macrocyclic diamine alkaloid haliclonacyclamine C." Texas A&M University, 2004. http://hdl.handle.net/1969.1/2738.

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Marine sponges produce a series of complex polycyclic diamine alkaloids which appear to have a common biogenesis from simple bis-pyridine macrocycles. These structurally novel secondary metabolites are presumably biosynthetically produced by the controlled ionic coupling of macrocyclic 3-alkyl piperidines leading to 3,4??-linked bis-piperidines (ii). Included among these diamine marine alkaloids is haliclonacyclamine C (i) which serves as our synthetic target. Chapter I in this thesis provides background information describing biological activity and proposed biosynthetic pathways to these i

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46

Lainchbury, Michael D. "Application of the [5+2] photocycloaddition to alkaloid synthesis and the total synthesis of (+)-neostenine." Thesis, University of Bristol, 2008. http://hdl.handle.net/1983/624b1569-8f1c-4d2b-915b-1f92ef955682.

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47

Archer, Robert Mark. "Methodology for the synthesis of carbohydrate and alkaloid derived natural products." Thesis, University of Bath, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.604560.

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The first part of this thesis describes the synthesis, solution studies and biological evaluation of 2-keto-3-deoxy-ulosonic acids. A synthetic route was developed for 2-keto- 3-deoxy-gluconate (o-KDG) and 2-keto-3-deoxy-galactonate (D-KDGal) that provided the targets via concise four step routes from naturally occurring sugar substrates. These routes make use of Horner-Wadsworth-Emmons reactions between the anion of ethyl 2- ((terl-butyldimethylsi lyl)oxy)-2-(dimethoxy-phosphoryl) acetate 1 with enantiopure sugarderived aldehydes to afford silyl-enol et hers that cou d be globally deprotected

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48

Oliveira, Imbroisi Dennis de. "Progress towards the total synthesis of the antitumor alkaloid manzamine A." Thesis, University of Nottingham, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.277934.

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49

Pigza, Julie Alana. "Progress toward the total synthesis of the Lycopodium alkaloid, (+)-serratezomine A." [Bloomington, Ind.] : Indiana University, 2008. 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:3319911.

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Thesis (Ph. D.)--Indiana University, Dept. of Chemistry, 2008.<br>Title from PDF t.p. (viewed May 13, 2009). Source: Dissertation Abstracts International, Volume: 69-08, Section: B, page: 4762. Adviser: Jeffrey N. Johnston.

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50

Khedr, Tawfeek. "Bitter sweet: Exploring alkaloid synthesis in lupin using LC-MS/MS." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2024. https://ro.ecu.edu.au/theses/2811.

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Lupin is a dominant legume crop in Western Australia, with strong domestic and export markets. Due to its high protein and fibre content, coupled with low levels of carbohydrates and fat, lupin has garnered significant interest over other legumes. It is cultivated for a variety of food and animal feed applications. However, lupin products may pose health risks to consumers due to the presence of toxic quinolizidine alkaloids (QAs). Quinolizidine alkaloids serve as natural plant defence mechanisms, and they have wide industrial applications. However, they can be toxic to humans and animals if c

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