Academic literature on the topic 'Organic chemistry ; Natural products ; natural product synthesis'

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Journal articles on the topic "Organic chemistry ; Natural products ; natural product synthesis"

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Wang, Zhuo, and Junyang Liu. "All-carbon [3 + 2] cycloaddition in natural product synthesis." Beilstein Journal of Organic Chemistry 16 (December 9, 2020): 3015–31. http://dx.doi.org/10.3762/bjoc.16.251.

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Many natural products possess interesting medicinal properties that arise from their intriguing chemical structures. The highly-substituted carbocycle is one of the most common structural features in many structurally complicated natural products. However, the construction of highly-substituted, stereo-congested, five-membered carbocycles containing all-carbon quaternary center(s) is, at present, a distinct challenge in modern synthetic chemistry, which can be accessed through the all-carbon [3 + 2] cycloaddition. More importantly, the all-carbon [3 + 2] cycloaddition can forge vicinal all-carbon quaternary centers in a single step and has been demonstrated in the synthesis of complex natural products. In this review, we present the development of all-carbon [3 + 2] cycloadditions and illustrate their application in natural product synthesis reported in the last decade covering 2011–2020 (inclusive).
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Wang, Dan, and Shuanhu Gao. "Sonogashira coupling in natural product synthesis." Org. Chem. Front. 1, no. 5 (2014): 556–66. http://dx.doi.org/10.1039/c3qo00086a.

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Fernandes, Rodney A., Anupama Kumari, and Ramdas S. Pathare. "A Decade with Dötz Benzannulation in the Synthesis of Natural Products." Synlett 31, no. 05 (February 3, 2020): 403–20. http://dx.doi.org/10.1055/s-0039-1690791.

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The Dötz benzannulation is a named reaction that utilizes Fischer chromium carbenes in a formal [3+2+1] cycloaddition with an alkyne and CO to produce the corresponding benzannulated product. Since its development in the 1970s, this reaction has been extensively used in the synthesis of natural products and various molecular architectures. Although the reaction sometimes suffers from the formation of other competing side products, the rapid construction of naphthol structures with a 1,4-dihydroxy unit makes it the most appropriate reaction for the synthesis of p-naphthoquinones. This review focuses on our group’s efforts over the past decade on the extensive use of this annulation reaction along with the contributions of others on the synthesis of different natural products.1 Introduction2 General Description and Mechanism of the Dötz Benzannulation Reaction3 Applications of the Dötz Benzannulation in Natural Product Synthesis over the Last Decade4 Conclusion
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Beemelmanns, Christine, Dávid Roman, and Maria Sauer. "Applications of the Horner–Wadsworth–Emmons Olefination in Modern Natural Product Synthesis." Synthesis 53, no. 16 (April 28, 2021): 2713–39. http://dx.doi.org/10.1055/a-1493-6331.

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AbstractThe Horner–Wadsworth–Emmons (HWE) reaction is one of the most reliable olefination reaction and can be broadly applied in organic chemistry and natural product synthesis with excellent selectivity. Within the last few years HWE reaction conditions have been optimized and new reagents developed to overcome challenges in the total syntheses of natural products. This review highlights the application of HWE olefinations in total syntheses of structurally different natural products covering 2015 to 2020. Applied HWE reagents and reactions conditions are highlighted to support future synthetic approaches and serve as guideline to find the best HWE conditions for the most complicated natural products.1 Introduction and Historical Background2 Applications of HWE2.1 Cyclization by HWE Reactions2.2.1 Formation of Medium- to Larger-Sized Rings2.2.2 Formation of Small- to Medium-Sized Rings2.3 Synthesis of α,β-Unsaturated Carbonyl Groups2.4 Synthesis of Substituted C=C Bonds2.5 Late-Stage Modifications by HWE Reactions2.6 HWE Reactions on Solid Supports2.7 Synthesis of Poly-Conjugated C=C Bonds2.8 HWE-Mediated Coupling of Larger Building Blocks2.9 Miscellaneous3 Summary and Outlook
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Ball, Philip. "Synthetic organic chemistry in China: building on an ancient tradition—an interview with Qi-Lin Zhou and Xiaoming Feng." National Science Review 4, no. 3 (April 4, 2017): 437–40. http://dx.doi.org/10.1093/nsr/nwx035.

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Abstract If the core of chemistry is making molecules, then the construction of those found in nature—natural products—has long been regarded as one of the highest forms of the art in synthesis. These molecules, produced by living organisms for a variety of purposes, are a key source of pharmaceuticals such as antibiotics and anticancer agents. The medicinal value of natural products has been known for centuries via herbal treatments, and such compounds are still collected, refined and screened for potential drugs today, sometimes being identified from local ‘folk medicine’ practices. By identifying the active ingredients of natural extracts used in traditional medicine, chemists can then synthesize modified forms that may be even more active: this was how the analgesic aspirin was first identified as a derivative of the plant hormone salicylic acid from willow bark. As well as offering such derivatives, natural-product synthesis in organic chemistry can potentially provide a more plentiful alternative source of natural products that are available in only tiny amounts from their natural sources. Efforts to devise cheap and efficient synthetic strategies for molecules such as paclitaxel (Taxol, an anticancer agent present in the Pacific yew) and artemisinin (an anti-malarial extracted from the herb sweet wormwood, qinghao (青蒿), and recognized by the 2015 Nobel Prize for Medicine) are still on-going to satisfy global demand. Organic synthesis is about much more than making natural products: it contributes, for example, to catalysis, polymer chemistry, food science and the development of wholly synthetic drugs. Yet efforts to make complex natural products may supply a motivational testing ground for developing new synthetic techniques with broader applications. Indeed, many chemists prize the discovery of a new synthetic method above the recreation of some complex natural molecule: it is the means, not the end, that matters. The field of organic and natural-product synthesis has a strong history in China, where there is a long tradition of herbal medicine. The use of the qinghao extract for treating malaria is first recorded in AD 340, in a manual that the 2015 Nobel laureate Tu Youyou says she consulted for clues about isolating the compound in the beginning of 1970s. Some say that, in the past decade, Chinese natural-product chemistry has entered a ‘golden era’ (Zheng Q-Y and Li A. Sci China Chem 2016;59: 1059–60). Qi-Lin Zhou of Nankai University and Xiaoming Feng of Sichuan University have been at the forefront of this upsurge. Both of them have developed methods for making so-called chiral molecules: arrangements of atoms that have a handedness, so that they can exist in two mirror-image versions. Natural products typically are chiral molecules, and their biological activity may depend on having the correct handedness. The selective synthesis of chiral molecules (asymmetric synthesis) is therefore vital to natural-product chemistry, and typically involves the use of catalysts that are chiral themselves. National Science Review spoke to Zhou and Feng about their work and their perspectives on organic synthesis in China. Qi-Lin Zhou of College of Chemistry at Nankai University, China. (Courtesy of Q Zhou)
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Takao, Ken-ichi, Akihiro Ogura, Keisuke Yoshida, and Siro Simizu. "Total Synthesis of Natural Products Using Intramolecular Nozaki–Hiyama–Takai–Kishi Reactions." Synlett 31, no. 05 (February 3, 2020): 421–33. http://dx.doi.org/10.1055/s-0039-1691580.

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In this Account, we describe our studies on the total synthesis of several natural products using intramolecular Nozaki–Hiyama–Takai–Kishi (NHTK) reactions. In each synthesis, an NHTK reaction is used to efficiently construct a medium-sized ring. These examples demonstrate the utility of the intramolecular NHTK reaction in natural product synthesis.1 Introduction2 Total Synthesis of (+)-Pestalotiopsin A3 Total Synthesis of (+)-Cytosporolide A4 Total Synthesis of (+)-Vibsanin A5 Total Syntheses of (+)-Aquatolide and Related Humulanolides6 Conclusion
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Speck, Klaus, and Thomas Magauer. "The chemistry of isoindole natural products." Beilstein Journal of Organic Chemistry 9 (October 10, 2013): 2048–78. http://dx.doi.org/10.3762/bjoc.9.243.

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This review highlights the chemical and biological aspects of natural products containing an oxidized or reduced isoindole skeleton. This motif is found in its intact or modified form in indolocarbazoles, macrocyclic polyketides (cytochalasan alkaloids), the aporhoeadane alkaloids, meroterpenoids from Stachybotrys species and anthraquinone-type alkaloids. Concerning their biological activity, molecular structure and synthesis, we have limited this review to the most inspiring examples. Within different congeners, we have selected a few members and discussed the synthetic routes in more detail. The putative biosynthetic pathways of the presented isoindole alkaloids are described as well.
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Yokoshima, Satoshi. "Synthesis of Polycyclic Natural Products through Skeletal Rearrangement." Synlett 31, no. 20 (July 23, 2020): 1967–75. http://dx.doi.org/10.1055/s-0040-1707904.

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Construction of rings through reliable reactions followed by changes in the ring size or the connectivity through skeletal rearrangement provides molecules with a wide range of skeletons. In this account, our syntheses of polycyclic natural products through skeletal rearrangement are discussed.1 Introduction2 Synthesis through Changes in the Ring Size3 Synthesis by Biomimetic Strategies4 Synthesis through Metathesis5 Synthesis through Temporary Formation of a Ring6 Conclusion
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Aitken, R. Alan. "Asymmetric Synthesis of Natural Products." Synthesis 1994, no. 01 (1994): 121–22. http://dx.doi.org/10.1055/s-1994-25419.

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Thorat, Sagar S., and Ravindar Kontham. "Recent advances in the synthesis of oxaspirolactones and their application in the total synthesis of related natural products." Organic & Biomolecular Chemistry 17, no. 31 (2019): 7270–92. http://dx.doi.org/10.1039/c9ob01212e.

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Oxaspirolactones are ubiquitous structural motifs found in natural products and synthetic molecules with a diverse biochemical and physicochemical profile, and represent a valuable target in natural product chemistry and medicinal chemistry.
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Dissertations / Theses on the topic "Organic chemistry ; Natural products ; natural product synthesis"

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Heaviside, Elizabeth Anne. "Analogues of antibacterial natural products." Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:6b5bd771-515b-49d0-8ec9-cee115d3aebf.

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Analogues of Antibacterial Natural Products Elizabeth Anne Heaviside, St Catherine’s College, University of Oxford DPhil Thesis, Trinity Term 2012 This thesis is concerned with the synthesis and biological evaluation of structural mimics for the natural products 16-methyloxazolomycin and lemonomycin which display potent biological activity including antibacterial and antitumour activity. Chapter 1 explores methods and approaches to the discovery of new antibacterial drugs and the challenges faced in this respect. It also gives an overview of the properties of the natural products investigated in the following chapters and summarises previous synthetic approaches to these molecules published in the scientific literature. Chapter 2 describes the work carried out towards the synthesis of the diazabicyclo[3.2.1]octane unit of the tetrahydroisoquinoline antitumour antibiotic lemonomycin. The intended retrosynthesis of the natural product led to a 2,5-disubstituted pyrrolidine bearing a 1ʹ-amino functional group; a series of routes were explored for the synthesis of this unit. Using (S)-pyroglutamic acid, strategies using Eschenmoser and thiolactim ether coupling reactions were investigated. A sequence based on the formation of a pyrrolidine ring from the cyclisation of an appropriately substituted oxime ether derived from L-phenylalanine was then implemented but a competing Beckmann rearrangement/Grob fragmentation prevented access to the desired heterocycle. Preliminary investigations were also carried out on the modification of cyclic imines derived from oxime ethers which did not undergo Beckmann rearrangement. Chapter 3 describes the synthesis of a library of densely functionalised tetramic acid and pyroglutamate mimics for the right-hand fragment of 16-methyloxazolomycin, and their coupling with a gem-dimethylamide unit mimicking the middle fragment of the natural product. Tetramates were accessed through the Dieckmann cyclisation of N-acyloxazolidines and were derivatised with various alkyl halides. The pyroglutamates were accessed via the highly diastereoselective aldol cyclisation of N-acyloxazolidines formed by the amide coupling of a threonine derived oxazolidine and β-keto-acids. A series of β-keto-acids were synthesised through the acylation and subsequent ring-opening/decarboxylation reaction of Meldrum’s acid. The formation of right-hand/middle fragment adducts was explored using cycloaddition, alkylation and Sonogashira chemistry before a Wittig protocol led to the formation of adducts (E)- and (Z)- 402 and 403. Biological evaluation of the compounds synthesised in this chapter was carried out using both broth and hole-plate bioassays and active compounds were identified. Of particular note was that the Wittig adducts displayed a higher level of activity against Gram-negative E. coli than either the pyroglutamate or amide motifs alone.
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Wallace, Stephen. "A cascade approach towards the gephyrotoxins." Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:1f7b55ec-0346-498c-be03-81f3b9fde2f5.

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The aim of this project was to develop a cascade approach towards perhydropyrrolo-[1,2-a]-quinolines and to apply this to the asymmetric synthesis of the gephyrotoxin alkoids. Chapters Two and Three outline the development of a synthetic route towards a range of cascade precursors, whilst Chapter Four outlines investigations into the enamine-Michael cascade. Central to understanding the cascade process was the discovery that the major product of the enamine-Michael cascade was the unusual tricyclic hydroquinium salt. This can subsequently be engaged in a diastereoselective inter- or intramolecular reduction to afford either a trans-perhydro-[1,2-a]-quinoline or a tetracyclic aminal in high overall yield depending on the C1 oxygen substituent.
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Källström, Jan Eddy Adolf. "Synthesis studies towards daphlongeranine B." Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:638685a8-da64-488b-b65d-ba9a2111d4fb.

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This thesis describes the development of a synthetic route towards daphlongeranine B, an alkaloid isolated from the fruits of Daphniphyllum longeracemosum, by utilising an intramolecular Michael addition to form its unique tricyclic core. Chapter 1 gives a general introduction to the family of Daphniphyllum alkaloids together with some recent examples, from the literature, illustrating some synthetic attempts towards structurally similar alkaloids. This chapter also features our retrosynthetic analysis of daphlongeranine B. Chapter 2 details the synthesis of the model spirocyclic enone 72 which was the vital building block needed to investigate the key intramolecular Michael addition. This key reaction was then successfully validated and access to the unique tricyclic core 64 of daphlongeranine B was made possible. Chapter 3 expands the scope of the key intramolecular Michael addition step. This chapter first describes a synthetic route to the Î2-substituted spirocyclic enone 112 and subsequently validates the key intramolecular Michael addition step to give the tricyclic core 138 of daphlongeranine B. Chapter 4 details a synthetic route towards the spirocyclic fragment 141 by utilising a Baker's yeast reduction and a tandem addition/cyclisation reaction.
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Dyson, Bryony Sara. "Determining the structures of halogenated marine natural products by total synthesis." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:31737a99-a13c-4110-b36d-1c043b66565b.

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Elatenyne, a brominated C15 acetogenin isolated from the red Laurencia elata marine algae, was originally assigned a pyranopyran structure. Previous total synthesis of the pyranopyran structure has found this assignment to be incorrect. During this work the revised 2,2’-bifuranyl skeleton of elatenyne was suggested, but this skeleton has 32 possible diastereomers. The most likely diastereomer of elatenyne was predicted using computational 13C NMR chemical shift calculation in combination with the possible stereochemical outcomes from the proposed biosynthesis. Chapter 1 introduces the structural misassignment of natural products and describes the misassignment of elatenyne as well as a related chloro enyne. The use of computational methods and biosynthetic postulates to aid structure elucidation are also discussed. Chapter 2 describes the first generation synthesis of cross metathesis coupling partners required for the synthesis of elatenyne from D-mannitol. Chapter 3 describes the completed total synthesis of elatenyne, along with three derivatives and the (E)-isomer of elatenyne; itself a natural product. A comparison of the synthetic data with the isolation data for the natural products is presented, as well as comparison with the synthetic material of Kim and co-workers whose concurrent biomimetic total synthesis is also presented. Chapter 4 describes the modular nature of the devised synthetic route to access any diastereomer of elatenyne and its application to related 2,2’-bifuranyl natural products.
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Wu, Boshen. "Synthesis of taurospongin A and other biologically active natural products." Thesis, University of Oxford, 2017. http://ora.ox.ac.uk/objects/uuid:37a34bc4-efb4-4a6b-9d44-a3ad1c8ae0be.

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This thesis firstly describes a synthesis of the natural product taurospongin A, a potent DNA polymerase beta inhibitor. Sharpless asymmetric dihydroxylation on olefin E-1.60 followed by selective deoxygenation at C(2) via Barton‒McCombie reaction delivers the desired C(1)–C(10) carboxylic acid core. Subsequent esterification of the C(1)–C(10) fragment with C(1′)–C(25′) fatty acid furnishes the natural product in 13.5% yield. The structure of an unnamed natural product 2.14 isolated in 1974 is proven to be misassigned by previous studies within the Robertson group. As described in this thesis, two proposed structures A and B are obtained via total synthesis in order to reveal the identity of the natural product. A synthesis of key intermediate spirocycles 2.148 and 2.158 with desired trans- diol moiety is described by a dihydroxylation reaction on an electron deficient gamma-keto unsaturated acid with subsequent spirocyclisation reaction. Finally, methodology for generating high-value synthetic intermediates by an asymmetric, one-pot enzymatic di/polycarbonyl reduction is described. The concept of such methodology is first proven by the synthesis of (3R)-hydroxybutyl (3R)-hydroxybutanoate 3.20. This thesis then describes substrate scope studies and corresponding stereochemical proof to provide more information about this methodology.
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Clark, J. Stephen. "Approaches to the synthesis of oxocane natural products." Thesis, University of Cambridge, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293810.

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Newman, Nicola Ann. "Cyclisation strategies towards the synthesis of natural products." Thesis, University of Southampton, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342637.

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Blunt, Christoper Edward. "The synthesis of benzisothiazole and benzothiazole natural products." Thesis, University of Nottingham, 2018. http://eprints.nottingham.ac.uk/49541/.

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Chapter 1 gives an introduction to benzisothiazole and benzothiazole natural products. It explores the scope of natural products that are known within these families and discusses what they are used for, how they have been made and how they may have been biosynthesised. Chapter 1 provides a review of each family of natural products in turn. Chapter 2 describes the total synthesis of the benzisothiazole natural products aulosirazole and pronqodine A, and a series of unnatural analogues. The Chapter begins with a short discussion on the use of the Diels-Alder reaction for the formation of naphthoquinones, then illustrates this strategy for the first synthesis of aulosirazole. The chapter continues with the synthesis of pronqodine A, a structurally similar natural product. The Chapter ends with an evaluation of these compounds as inhibitors of indoleamine-2,3-dioxygenase. Chapter 3 contains work towards the synthesis of the benzothiazole containing natural product erythrazole A. The first half of the Chapter focuses on the formation of the heterocyclic core, originally attempting to use a biomimetic strategy but switching to an approach utilising the oxidative cyclisation of thioamides. The second half of the Chapter discusses many routes to synthesise and introduce the terpene derived side chain. Chapter 4 contains experimental detail for the work carried out.
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Nolan, William Peter. "Synthesis of indolo[2,3-A]carbazole natural products." Thesis, University of Cambridge, 1990. https://www.repository.cam.ac.uk/handle/1810/272982.

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Tan, Song Wei Benjamin. "Natural product inspired organic synthesis : enantiopure heterocycles modelled on pramanicin." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:2368dca6-7fe5-46b7-a913-6fecbaa21bf0.

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This thesis is concerned with the synthesis of chiral pyrrolidinone scaffolds as mimics of the natural product pramanicin, and the evaluation of their antibacterial properties for use towards the development of potential novel antibacterial lead compounds. Chapter 1 discusses the urgency of the antibiotic resistance problem as well as the current lack of new antibiotics in the drug pipeline. This dearth of new antibacterials is partly attributed to the combinatorial libraries used in the screening process which occupies a limited chemical space. By applying the natural product-inspired paradigm, it is hypothesised that a drug discovery process with a starting point based on a natural product, possessing intrinsic antibacterial properties, may provide insights to a novel class of antibacterials. Chapter 2 describes the synthesis of three different scaffolds of oxygenated pyrrolidinones via a common bicyclic intermediate synthesised from L-pyroglutamic acid. The use of a mild and facile epoxidation condition utilising H2O2/tertiary amine afforded the epoxypyrrolidinones. α-Hydroxylation with “Davis oxaziridine” and a Ru-mediated dihydroxylation gave 2-hydroxypyrrolidinones and 2,3-dihydroxypyrrolidinones respectively. In all cases, a pendant Weinreb amide was used to introduce a variety of side-chains onto the parent pyrrolidinones. The enantioselective oxygenation of these scaffolds was accomplished as a result of the chiral [3.3.0] bicyclic intermediate. Chapter 3 describes the attempted synthesis of oxygenated pyrrolidinones via tetramic acids. Although progress was thwarted by synthetic challenges discussed therein, a series of tetramic acids was synthesised. A synthetic sequence to install a 3-acyl moiety onto the parent tetramic acid core was accomplished via an O-acyl/C-acyl rearrangement using a series of carboxylic acids in the presence of excess DMAP. The use of a 3-acyltetramic acid with a pendant phosphorane permits a general synthetic route, compatible with a wide range of aldehydes, towards 3-enoyltetramic acids via Horner-Wadsworth-Emmons olefination. These tetramic acids are mimics of another class of bactericidal natural products which nonetheless allows the natural product-inspired paradigm to be investigated. Finally, an analysis of the antibacterial properties of the synthesised compounds is discussed in Chapter 4. A cellular hole-plate bioassay with E. coli and S. aureus was chosen to provide a rapid assessment for active compounds. A correlation between the physicochemical properties and the observed activities of these active compounds suggested possible chemical modifications which could be undertaken in the future to improve their activities.
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Books on the topic "Organic chemistry ; Natural products ; natural product synthesis"

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Asymmetric synthesis of natural products. Hoboken, New Jersey: Wiley, 2012.

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Koskinen, Ari. Asymmetric synthesis of natural products. Hoboken, New Jersey: Wiley, 2012.

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Rahman, Atta-ur. Stereoselective synthesis. Amsterdam: Elsevier, 1996.

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Li, Jie Jack. Total Synthesis of Natural Products: At the Frontiers of Organic Chemistry. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012.

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Tian ran chan wu zi yuan hua xue: Resources chemistry of natural products. Beijing: Ke xue chu ban she, 2008.

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The way of synthesis: Evolution of design and methods for natural products. Weinheim, DE: Wiley-VCH, 2007.

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Summer School "A. Corbella" (23rd 1998 Università di Milano). Seminars in organic synthesis: XXIII Summer School "A. Corbella", June 15-19, 1998, Palazzo Feltrinelli, Università degli Studi di Milano, Gargnano (BS). Milan, Italy: Polo Editoriale Chimico, 1998.

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service), SpringerLink (Online, ed. Asymmetric Organocatalysis in Natural Product Syntheses. Vienna: Springer Vienna, 2012.

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Metathesis in natural product synthesis: Strategies, substrates and catalysts. Weinheim: Wiley-VCH, 2010.

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1937-, Hostettmann M., and Marston A. 1953-, eds. Preparative chromatography techniques: Applications in natural product isolation. Berlin: Springer-Verlag, 1986.

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Book chapters on the topic "Organic chemistry ; Natural products ; natural product synthesis"

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Appukkuttan, Prasad, and Erik Van der Eycken. "Microwave-Assisted Natural Product Chemistry." In Microwave Methods in Organic Synthesis, 1–47. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/128_051.

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Xu, Ling-Min, Yu-Fan Liang, Qin-Da Ye, Zhen Yang, Michael Foley, Scott A. Snyder, and Da-Wei Ma. "Diversity-Oriented Syntheses of Natural Products and Natural Product-Like Compounds." In Organic Chemistry - Breakthroughs and Perspectives, 1–31. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2012. http://dx.doi.org/10.1002/9783527664801.ch1.

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Paquette, Leo A., and Annette M. Doherty. "Synthesis of Diquinane Natural Products." In Reactivity and Structure Concepts in Organic Chemistry, 127–68. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-72598-2_8.

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Paquette, Leo A., and Annette M. Doherty. "Synthesis of Triquinane Natural Products." In Reactivity and Structure Concepts in Organic Chemistry, 169–208. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-72598-2_9.

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Schafroth, Michael A., and Erick M. Carreira. "Synthesis of Phytocannabinoids." In Progress in the Chemistry of Organic Natural Products, 37–59. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-45541-9_2.

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Wang, Qian, Jie-Ping Zhu, Kyriacos C. Nicolaou, Henry N. C. Wong, and Wei-Dong Li. "Total Synthesis of Natural Products and the Synergy with Synthetic Methodology." In Organic Chemistry - Breakthroughs and Perspectives, 33–79. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2012. http://dx.doi.org/10.1002/9783527664801.ch2.

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Lackner, Gregory L., Kyle W. Quasdorf, and Larry E. Overman. "Visible-Light Photocatalysis in the Synthesis of Natural Products." In Visible Light Photocatalysis in Organic Chemistry, 283–97. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2018. http://dx.doi.org/10.1002/9783527674145.ch9.

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Flessner, Timo, Rolf Jautelat, Ulrich Scholz, and Ekkehard Winterfeldt. "Cephalostatin Analogues — Synthesis and Biological Activity." In Progress in the Chemistry of Organic Natural Products, 1–80. Vienna: Springer Vienna, 2004. http://dx.doi.org/10.1007/978-3-7091-0581-8_1.

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Paquette, Leo A., and Annette M. Doherty. "Synthesis of Nonpolycyclopentanoid Natural Products by Way of Diquinane Intermediates." In Reactivity and Structure Concepts in Organic Chemistry, 112–26. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-72598-2_7.

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León, Alejandra, Mayela Del-Ángel, José Luis Ávila, and Guillermo Delgado. "Phthalides: Distribution in Nature, Chemical Reactivity, Synthesis, and Biological Activity." In Progress in the Chemistry of Organic Natural Products 104, 127–246. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-45618-8_2.

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Conference papers on the topic "Organic chemistry ; Natural products ; natural product synthesis"

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Couture, Axel, Marc Lamblin, Anne Moreau, Eric Deniau, Stéphane Lebrun, and Pierre Grandclaudon. "New Developments of the Parham Cyclization Process. Applications in Natural Products Synthesis." In The 9th International Electronic Conference on Synthetic Organic Chemistry. Basel, Switzerland: MDPI, 2005. http://dx.doi.org/10.3390/ecsoc-9-01479.

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Cortés, Iván, Andrea Bracca, and Teodoro Kaufman. "Short and efficient first total synthesis of the natural product chromanone A, a chromone derivative from the algicolous marine fungus <em>Penicillium</em> sp." In The 24th International Electronic Conference on Synthetic Organic Chemistry. Basel, Switzerland: MDPI, 2020. http://dx.doi.org/10.3390/ecsoc-24-08300.

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Pachlatko, J. "Natural Products in Crop Protection." In The 2nd International Electronic Conference on Synthetic Organic Chemistry. Basel, Switzerland: MDPI, 1998. http://dx.doi.org/10.3390/ecsoc-2-01701.

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Fonseca, André, Maria Matos, Saleta Vazquez-Rodriguez, Dolores Viña, Santiago Vilar, Fernanda Borges, Lourdes Santana, and Eugenio Uriarte. "Structural Modifications on Natural-based Products: Synthetic Strategies and Biological Applications." In The 18th International Electronic Conference on Synthetic Organic Chemistry. Basel, Switzerland: MDPI, 2014. http://dx.doi.org/10.3390/ecsoc-18-b023.

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Thiericke, Ralf, Yuan-Qing Tang, Isabel Sattler, Susanne Grabley, and Xiao-Zhang Feng. "Parallel Chromatography in Natural Products Chemistry: Isolation of New Secondary Metabolites from Streptomyces sp." In The 4th International Electronic Conference on Synthetic Organic Chemistry. Basel, Switzerland: MDPI, 2000. http://dx.doi.org/10.3390/ecsoc-4-01914.

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Cantrel, Laurent, Thierry Albiol, Loïc Bosland, Juliette Colombani, Frédéric Cousin, Anne-Cécile Grégoire, Olivia Leroy, et al. "IRSN R&D Actions on FP Behaviour for RCS, Containment and FCVS in Severe Accident Conditions." In 2016 24th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/icone24-61104.

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Abstract:
This paper deals with near past, ongoing and planned R&D works on fission products (FPs) behaviour in Reactor Cooling System (RCS), containment building and in Filtered Containment Venting Systems (FCVS) for severe accident (SA) conditions. For the last topic, in link with the Fukushima post-accident management and possible improvement of mitigation actions for such SA, the FCVS topic is again on the agenda (see Status Report on Filtered Containment Venting, OECD/NEA/CSNI, Report NEA/CSNI/R(2014)7, 2014.) with a large interest at the international scale. All the researches are collaborative works; the overall objective is to develop confident models to be implemented in ASTEC SA simulation software. After being initiated in the International Source Term Program (ISTP), researches devoted to the understanding of iodine transport through the RCS are still ongoing in the frame of a bilateral agreement between IRSN and EDF with promising results. In 2017, a synthesis report of the last 10 years of researches, which have combined experimental and fundamental works based on the use of theoretical chemistry tools, will be issued. For containment, the last advances are linked to the Source Term Evaluation and Mitigation (STEM) OECD/NEA project operated by IRSN. The objective of the STEM project was to improve the evaluation of Source Term (ST) for a SA on a nuclear power plant and to reduce uncertainties on specific phenomena dealing with the chemistry of two major fission products: iodine and ruthenium. More precisely, the STEM project provided additional knowledge and improvements for calculation tools in order to allow a more robust diagnosis and prognosis of radioactive releases in a SA. STEM data will be completed by a follow-up, called STEM2, to further the knowledge concerning some remaining issues and be closer to reactor conditions. Two additional programmes deal with FCVS issues: the MItigation of outside Releases in the Environment (MIRE) (2013–2019) French National Research Agency (NRA) programme and the Passive and Active Systems on Severe Accident source term Mitigation (PASSAM) (2013–2016) European project. For FCVS works, the efficiencies for trapping iodine with various FCVS, covering scrubbers and dry filters, are examined to get a clear view of their abilities in SA conditions. Another part, performed in collaboration with French universities (Lorraine and Lille 1), is focused on the enhancement of the performance of these filters with specific porous materials able to trap volatile iodine. For that, influence of zeolites materials parameters (nature of the counter-ions, structure, Si/Al ratio …) will be tested. New kind of porous materials constituted by Metal organic Frameworks (MOF) will also be looked at because they can constitute a promising way of trapping.
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