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Book
Progress in the Chemistry of Organic Natural Products 102
Authors: --- --- ---
ISBN: 3319331701 3319331728 Year: 2016 Publisher: Cham : Springer International Publishing : Imprint: Springer,

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Abstract

The first contribution reviews the phytochemical, chemical, and biological literature on members of the ingenane class of diterpenoids from their first isolation in 1968 through 2015, highlighting unresolved issues both common to phorboids and specific to ingenol derivatives. The biogenesis of ingenol is discussed in the light of the Jakupovic proposal of a dissection between the formation of the macrocyclic Euphorbia diterpenoids and the phorboids, and the clinical development of ingenol mebutate is chronicled in the light of its “reverse-pharmacology” focus. The second contribution offers a comprehensive view of the chemical wealth and the taxonomic problems currently impeding chemical and biological investigations of the genus Laurencia. It addresses the botanical description and the growth and population dynamics of the genus, as well as its chemical diversity and ecological relations; the secondary metabolites as well as their sources of isolation; and finally the biological activity.


Book
Progress in the Chemistry of Organic Natural Products 101
Authors: --- --- ---
ISBN: 3319226916 3319226924 Year: 2016 Publisher: Cham : Springer International Publishing : Imprint: Springer,

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The volumes of this classic series, now referred to simply as "Zechmeister" after its founder, Laszlo Zechmeister, have appeared under the Springer Imprint ever since the series' inauguration in 1938. The series has featured contributions by seven Nobel laureates: D.H.R. Barton, D. Crowfoot Hodgkin, L. Pauling, K. Alder, O. Diels, P. Karrer, and H. von Euler-Chelpin. The volumes contain contributions on various topics related to the origin, distribution, chemistry, synthesis, biochemistry, function or use of various classes of naturally occurring substances ranging from small molecules to biopolymers. Each contribution is written by a recognized authority in the field and provides a comprehensive and up-to-date review of the topic in question. Addressed to biologists, technologists, and chemists alike, the series can be used by the expert as a source of information and literature citations and by the non-expert as a means of orientation in a rapidly developing discipline.


Book
Progress in the Chemistry of Organic Natural Products 104
Authors: --- --- ---
ISBN: 3319456180 3319456164 Year: 2017 Publisher: Cham : Springer International Publishing : Imprint: Springer,

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The first contribution describes apolar and polar molecular fossils and, in particular biomarkers, along the lines usually followed in organic chemistry textbooks, and points to their bioprecursors when available. Thus, the apolar compounds are divided in linear and branched alkanes followed by alicyclic compounds and aromatic and heterocyclic molecules, and, in particular, the geoporphyrins. The polar molecular fossils contain as functional groups or constituent units ethers, alcohols, phenols, carbonyl groups, flavonoids, quinones, and acids, or are polymers like kerogen, amber, melanin, proteins, or nucleic acids. The final sections discuss the methodology used and the fundamental processes encountered by the biomolecules described, including diagenesis, catagenesis, and metagenesis. The second contribution covers the distribution of phthalides in nature and the findings in the structural diversity, chemical reactivity, biotransformations, syntheses, and bioactivity of natural and semisynthetic phthalides.


Book
Progress in the Chemistry of Organic Natural Products 106
Authors: --- --- ---
ISBN: 3319595423 3319595415 Year: 2017 Publisher: Cham : Springer International Publishing : Imprint: Springer,

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The first contribution presents coumarins, the largest group of 1-benzopyran derivatives found in plants. Coumarin chemistry remains one of the major interest areas of phytochemists, especially because of their structural diversity and medicinal properties, along with the wide-ranging bioactivities of these compounds, inclusive of analgesic, anticoagulant anti-HIV, anti-inflammatory, antimicrobial, antineoplastic, antioxidant, and immunomodulatory effects. The second contribution presents a comprehensive survey of the many aspects of PAD biochemistry and physiology. The third contribution gives a comprehensive overview of secondary metabolites from higher fungi, with more than 700 references highlighting the isolation, structure elucidation, biological activities, chemical synthesis, and biosynthesis of pigments, nitrogen-containing compounds, and terpenoids from mushrooms. .


Book
Progress in the Chemistry of Organic Natural Products 105
Authors: --- --- ---
ISBN: 3319497111 331949712X Year: 2017 Publisher: Cham : Springer International Publishing : Imprint: Springer,

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The first contribution reviews the occurrence of xanthine alkaloids in the plant kingdom and the elucidation of the caffeine biosynthesis pathway, providing details of the N-methyltransferases, belonging to the motif B' methyltransferase family which catalyze three steps in the four step pathway leading from xanthosine to caffeine. The second contribution in this book provides a background on the molecule and related compounds and update knowledge on the most recent advances in Iboga alkaloids. The third contribution presents a comprehensive analysis of frequently occurring errors with respect to 13C NMR spectroscopic data and proposes a straightforward protocol to eliminate a high percentage of the most obvious errors.


Book
Phytocannabinoids : Unraveling the Complex Chemistry and Pharmacology of Cannabis sativa
Authors: --- --- ---
ISBN: 3319455419 3319455397 Year: 2017 Publisher: Cham : Springer International Publishing : Imprint: Springer,

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The book presents the current state of the art on phytocannnabinoid chemistry and pharmacology and will be of much use to those wishing to understand the current landscape of the exciting and intriguing phytocannabinoid science. The focus is on natural product cannabinoids which have been demonstrated to act at specific receptor targets in the CNS.


Book
Policy, belief and practice in the secondary English classroom : a case-study approach from Canada, England and Scotland
Authors: --- --- ---
ISBN: 1350026018 1350025992 Year: 2018 Publisher: London : Bloomsbury Publishing,

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"Studies of comparative classroom practice in the teaching of secondary English are limited, especially when it comes to exploration of the day-to-day practice of English teachers in the secondary classroom. This book presents a case study analysis of secondary classroom practice in three countries: Canada, England and Scotland. Each country has had different degrees of state involvement within the secondary English curriculum over the last twenty years. England has had the highest degree of state involvement in that it has had several statutory national curricula and a variety of assessment regimes. Scotland has had a non- statutory curriculum and no national tests and Canada has had no national curriculum at all, with education being determined at province level, and each province varying its policies. The research adopts a case study approach involving both classroom observation and interviews with teachers. Through this, the authors explore the impact of state involvement on the reality of what happens in secondary English classrooms. The book invites readers to consider the applicability of the findings to their own contexts, to examine their own practice in the light of this and to consider the nature of the relationships between policy, personal belief and practice in the teaching of English."--Bloomsbury Publishing.


Book
Progress in the Chemistry of Organic Natural Products 107
Authors: --- --- --- --- --- et al.
ISBN: 3319935054 3319935062 Year: 2018 Publisher: Cham : Springer International Publishing : Imprint: Springer,

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The first review describes examples of very promising compounds discovered from plants acquired from Africa, Southeast Asia, the Americas, and the Caribbean region with potential anticancer activity. These include plant secondary metabolites of the diphyllin lignan, penta[b]benzofuran, triterpenoid, and tropane alkaloid types. The second review presents 40 more erythrinan alkaloids, which were either new or were missed out in the last major reviews, bringing to a total of 154 known erythrinan alkaloids known to date. The reported pharmacological activities of the new and known alkaloids showed a greater bias towards central nervous system and related activities. Other prominent activities reported were antifeedant or insecticidal, cytotoxicity/anti­tumor/anti­cancer/estrogenic, antiprotozoal, antiinflammatory, antioxidant, antifungal and antiviral activities.


Book
Progress in the Chemistry of Organic Natural Products 108
Authors: --- --- --- --- --- et al.
ISBN: 3030010996 3030010988 Year: 2019 Publisher: Cham : Springer International Publishing : Imprint: Springer,

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The first contribution summarizes current trends in research on medicinal plants in Mexico with emphasis on work carried out at the authors' laboratories. The most relevant phytochemical and pharmacological profiles of a selected group of plants used widely for treating major national health problems are described. The second contribution provides a detailed survey of the so far reported literature data on the capacities of selected oxyprenylated phenylpropanoids and polyketides to trigger receptors, enzymes, and other types of cellular factors for which they exhibit a high degree of affinity and therefore evoke specifice responses. And the third contribution discusses aspects of endophytic actinobacterial biology and chemistry, including biosynthesis and total synthesis of secondary metabolites produced in culture. It also presents perspectives fo the future of microbial biodiscovery, with emphasis on the seondary metabolism of endophytic actinobacteria.


Book
Progress in the Chemistry of Organic Natural Products 109
Authors: --- --- --- --- --- et al.
ISBN: 303012858X 3030128571 Year: 2019 Publisher: Cham : Springer International Publishing : Imprint: Springer,

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This volume comprises three reviews. The first describes isolation, structure determination, syntheses, and biochemistry of the low molecular weight compounds of the secretion of exocrine glands of termies with emphasis to pheromones and defensive compounds. The second review describes recent studies on isolation and structure elucidation of bioactive compounds involved in the life cycle and determination of the molecular mechanisms of the developmental events observed in higher plants. The third contribution reports on the current body of knowledge of African propolis, with a particular emphasis on its chemistry and biological activity. .

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