Download or read book Total Synthesis of Beauvericin Using Dehydroamino Acid Residues to Facilitate Cyclization written by Gregory Thomas Cizio and published by . This book was released on 2014 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: A unique strategy that helps facilitate macrocyclization has been developed and utilized in the synthesis of a cyclic hexadepsipeptide natural product. By using dehydrophenylalanine amino acids in the synthesis of beauvericin, the precursor to the macrocycle is folded in such a way that the C- and the N- termini of the depsipeptide are closer together and cyclization is facilitated. Two strategies towards construction of the macrocycle have been investigated: (1) a cyclotrimerization approach which utilizes a monomeric dipeptide oxazolone and (2) a linear approach which cyclizes a hexadepsipeptide oxazolone. The macrocycle then underwent a global N-methylation followed by rhodium-catalyzed asymmetric hydrogenation which reduced the unsaturated amino acid residues to their desired saturated forms to give rise to the natural product. With the cyclotrimerization route, beauvericin was afforded in 10% yield over 8 steps, and with the linear route, beauvericin was afforded in 19% yield over 12 steps.
Download or read book Comprehensive Natural Products Chemistry written by Derek Barton and published by Newnes. This book was released on 1999-02-18 with total page 11380 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive Natural Products Chemistry
Download or read book Natural Products written by Anne Osbourn and published by John Wiley & Sons. This book was released on 2014-04-02 with total page 601 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural Products: Discourse, Diversity and Design provides an informative and accessible overview of discoveries in the area of natural products in the genomic era, bringing together advances across the kingdoms. As genomics data makes it increasingly clear that the genomes of microbes and plants contain far more genes for natural product synthesis than had been predicted from the numbers of previously identified metabolites, the potential of these organisms to synthesize diverse natural products is likely to be far greater than previously envisaged. Natural Products addresses not only the philosophical questions of the natural role of these metabolites, but also the evolution of single and multiple pathways, and how these pathways and products may be harnessed to aid discovery of new bioactives and modes of action. Edited by recognized leaders in the fields of plant and microbial biology, bioorganic chemistry and natural products chemistry, and with contributions from researchers at top labs around the world, Natural Products is unprecedented in its combination of disciplines and the breadth of its coverage. Natural Produces: Discourse, Diversity and Design will appeal to advanced students and experienced researchers, from academia to industry, in diverse areas including ecology, industrial biotechnology, drug discovery, medicinal chemistry, agronomy, crop improvement, and natural product chemistry.
Download or read book The Chemistry of Mycotoxins written by Stefan Bräse and published by Springer Science & Business Media. This book was released on 2013-02-14 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: The biological activity of mycotoxins ranges from weak and/or sometimes positive effects, such as antibacterial activity (see penicillin derivatives derived from Penicillium strains) to strong mutagenic (e. g. aflatoxins, patulin), carcinogenic (e. g. aflatoxins), teratogenic, neurotoxic (e. g. ochratoxins), nephrotoxic (e. g. fumonisins, citrinin), hepatotoxic, and immunotoxic (e. g. ochratoxins, diketopiperazines) activity. Nowadays, many laboratories around the world are specialized in the detection of mycotoxins in food products and contaminated material found in housing. In this volume, a focus on the most important classes of mycotoxins is provided and their chemistry of the last ten years is discussed. In each Section, the individual biological impact is outlined. Sections are arranged according to mycotoxin classes (e. g. aflatoxins) and/or structural classes (e. g. resorcinyl lactones, diketopiperazines). The biology of mycotoxins is also described.
Download or read book Amino Acids Peptides and Proteins written by J S Davies and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 455 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amino Acids, Peptides and Proteins comprises a comprehensive review of significant developments at this biology/chemistry interface. Each volume of this Specialist Periodical Report opens with an overview of amino acids and their applications. Work on peptides is reviewed over several chapters, ranging from current trends in their synthesis and conformational and structural analysis, to peptidomimetics and the discovery of peptide-related molecules in nature. The application of advanced techniques in structural elucidation is incorporated into all chapters, whilst periodic chapters on metal complexes of amino acids, peptides and beta-lactams extend the scope of coverage. Efficient searching of specialist topics is facilitated by the sub-division of chapters into discrete subject areas, allowing annual trends to be monitored. Researchers in the pharmaceutical and allied industries, and at the biology/chemistry interface in academia will find this an indispensable reference source. Specialist Periodical Reports provide systematic and detailed review coverage in major areas of chemical research. Compiled by teams of leading experts in their specialist fields, this series is designed to help the chemistry community keep current with the latest developments in their field. Each volume in the series is published either annually or biennially and is a superb reference point for researchers. www.rsc.org/spr
Download or read book Flavin Dependent Enzymes Mechanisms Structures and Applications written by and published by Academic Press. This book was released on 2020-09-21 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Enzymes, Volume 47, highlights new advances in the field, with this new volume presenting interesting chapters on The Multipurpose Family of Oxidases, Vanillyl alcohol oxidase, Choline oxidases, Aryl alcohol oxidase, D- and L-amino acid oxidases, Sugar oxidases, Phenolic Compounds hydroxylases, Baeyer-Villiger Monooxygenases, Flavin-dependent halogenases, Flavin-dependent dehalogenases, Styrene Monooxygenases, Bacterial luciferases, Cellobiose Dehydrogenases, Prenylated flavoenzymes, Ene-reductases, Flavoenzymes in Biocatalysis. Provides the authority and expertise of leading contributors from an international board of authors Presents the latest release in The Enzymes series
Download or read book Amino Acid and Peptide Synthesis written by John Jones and published by Oxford University Press, USA. This book was released on 1992 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: The principal methods for the synthesis of amino acids and peptides are outlined in this concise introduction. With its emphasis on chemical principles and strategies, the book should be of value to all undergraduate chemistry students.
Download or read book Amino Acids Peptides and Proteins in Organic Chemistry written by Andrew B. Hughes and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comprehensive Chirality written by and published by Newnes. This book was released on 2012-12-31 with total page 5635 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although many books exist on the subject of chiral chemistry, they only briefly cover chiral synthesis and analysis as a minor part of a larger work, to date there are none that pull together the background information and latest advances in one comprehensive reference work. Comprehensive Chirality provides a complete overview of the field, and includes chiral research relevant to synthesis, analytic chemistry, catalysis, and pharmaceuticals. The individual chapters in each of the 9 volumes provide an in depth review and collection of references on definition, technology, applications and a guide/links to the related literature. Whether in an Academic or Corporate setting, these chapters will form an invaluable resource for advanced students/researchers new to an area and those who need further background or answers to a particular problem, particularly in the development of drugs. Chirality research today is a central theme in chemistry and biology and is growing in importance across a number of disciplinary boundaries. These studies do not always share a unique identifying factor or subject themselves to clear and concise definitions. This work unites the different areas of research and allows anyone working or researching in chiral chemistry to navigate through the most essential concepts with ease, saving them time and vastly improving their understanding. The field of chirality counts several journals that are directly and indirectly concerned with the field. There is no reference work that encompasses the entire field and unites the different areas of research through deep foundational reviews. Comprehensive Chirality fills this vacuum, and can be considered the definitive work. It will help users apply context to the diverse journal literature offering and aid them in identifying areas for further research and/or for solving problems. Chief Editors, Hisashi Yamamoto (University of Chicago) and Erick Carreira (ETH Zürich) have assembled an impressive, world-class team of Volume Editors and Contributing Authors. Each chapter has been painstakingly reviewed and checked for consistent high quality. The result is an authoritative overview which ties the literature together and provides the user with a reliable background information and citation resource.
Download or read book Antibiotic and Chemotherapy written by Roger G. Finch and published by . This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The completely revised and updated New Edition of this respected resource presents globally-relevant coverage of all types of antimicrobial agents used in human medicine, providing authoritative guidance on the principles and practice of antimicrobial chemotherapy. In addition to full coverage of every commonly used antibiotic agent, it includes complete coverage of all antiviral, antiprotozoan and anthelminthic agents. And, its unique 3-part structure makes it easy to locate information: Part I covers general aspects of treatment; Part II reviews every agent, including antimicrobial activity, pharmacokinetics, clinical use, and available preparations; Part III details the treatment of particular infections. Discusses the increasing problem of multi-drug resistance and the wide range of new antiviral therapies now available for the treatment of HIV and other viral infections. Reviews all of the new antimicrobial agents in detail. Features more clinically focused sections on Pharmacokinetics. Details new antifungal therapies, including voriconazole, liposomal, and amphotericin B. Presents new tables on major drug interactions, placental transfer, and concentrations of agents in breast milk. Features new sections on liver failure, drug development and licensing, and the implications of xenotransplantation. Presents expanded coverage of Quinolone as well as new antimalarial combination therapies. Offers cross-references to key web sites, for up-to-date information on treatment and drug resistance.
Download or read book Pharmacology and Therapeutics for Dentistry E Book written by John A. Yagiela and published by Elsevier Health Sciences. This book was released on 2010-03-19 with total page 960 pages. Available in PDF, EPUB and Kindle. Book excerpt: Use your knowledge of pharmacology to enhance oral care! Pharmacology and Therapeutics for Dentistry, 6th Edition describes how to evaluate a patient’s health and optimize dental treatment by factoring in the drugs they take. It explores the basic fundamentals of pharmacology, special topics such as pain control, fear and anxiety, and oral complications of cancer therapy, and most importantly, the actions of specific drug groups on the human body. Whether you’re concerned about the drugs a patient is already taking or the drugs you prescribe for treatment, this book helps you reduce risk and provide effective dental care. An emphasis on the dental applications of pharmacology relates drugs to dental considerations in clinical practice. Dental aspects of many drug classes are expanded to include antibiotics, analgesics, and anesthetics. The Alternative Medicine in Dentistry chapter discusses chemicals used as alternative medicines and assesses their potential benefits and risks. The Nonopioid Analgesics chapter groups together non-opioid analgesics, nonsterioidal anti-inflammatory drugs, and antirheumatic and antigout drugs, making these easier to locate and study. Coverage of the endocrine system includes four separate chapters for the most comprehensive coverage. Drug Interactions in Clinical Dentistry appendix lists potential interactions between drugs a patient is taking for nondental conditions and drugs that may be used or prescribed during dental treatment, including effects and recommendations. Glossary of Abbreviations appendix includes the most common abbreviations used for drugs or conditions. New Pharmacogenetics and Pharmacogenomics chapter covers the effects of genetic traits of patients on their responses to drugs. A NEW introductory section offers tips for the study of dental pharmacology and relates pharmacology to dental considerations. An updated discussion of drug-drug interactions covers the harmful effects of mixing medications. Coverage of adverse effects and mechanisms of COX-2 inhibitors, antibiotic prophylaxis, and antiplaque agents explains the dental risks relating to common drug treatments.
Download or read book The Biosynthesis of Mycotoxins written by Pieter Steyn and published by Elsevier. This book was released on 2012-12-02 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Biosynthesis of Mycotoxins: A Study in Secondary Metabolism focuses on the biosynthetic analysis of mycotoxins, which are inherently a heterogeneous group of metabolites that are formed along the terpene route and the route polyketide, as well as from amino acids. This book discusses the unique biological properties and structural complexity of the highly specialized secondary microbial metabolites. Organized into 12 chapters, this book starts with an overview of the characteristics of secondary metabolites, including their problematic function and the combination of their structural diversity with their restricted biological occurrence. This text then explains the sporadic occurrence of the mycotoxins as fungal metabolites. Other chapters explore ergochromes, which are a group of light yellow mycotoxins that are isolated from ergot, mold fungi, and lichens. The final chapter discusses the biosynthesis of several unrelated fungal metabolites for which toxicological data are reported. Biochemists, organic chemists, mycologists, enzymologists, plant pathologists, toxicologists, and graduate students will find this book useful.
Download or read book Amino Acids Peptides and Proteins written by J S Davies and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: In an ever-increasing domain of activity, Amino Acids, Peptides and Proteins provides an annual compilation of the world's research effort into this important area of biological chemistry. Volume 34 provides a review of literature published during 2001. Comprising a comprehensive review of significant developments at this biology/chemistry interface, each volume opens with an overview of amino acids and their applications. Work on peptides is reviewed over several chapters, ranging from current trends in their synthesis and conformational and structural analysis, to peptidomimetics and the discovery of peptide-related molecules in nature. The application of advanced techniques in structural elucidation is incorporated into all chapters, whilst periodic chapters on metal complexes of amino acids, peptides and beta-lactams extend the scope of coverage. Efficient searching of specialist topics is facilitated by the sub-division of chapters into discrete subject areas, allowing annual trends to be monitored. All researchers in the pharmaceutical and allied industries, and at the biology/chemistry interface in academia will find this an indispensable reference source. Specialist Periodical Reports provide systematic and detailed review coverage in major areas of chemical research. Compiled by teams of leading authorities in the relevant subject areas, the series creates a unique service for the active research chemist, with regular, in-depth accounts of progress in particular fields of chemistry. Subject coverage within different volumes of a given title is similar and publication is on an annual or biennial basis.
Download or read book Challenges in Synthetic Organic Chemistry written by Teruaki Mukaiyama and published by Oxford University Press, USA. This book was released on 1994 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume describes the life's work of Professor Teruaki Mukaiyama, one of Japan's most important and respected synthetic organic chemists. It includes information on his early research into a wide range of reactions, including dehydration reactions, the use of organosulfur compounds, and oxidation-reduction condensations in peptide and nucleotide synthesis reagents, as well as an account of Mukaiyama's important work on the applications of titanium compounds in organic synthesis. Three final chapters review Mukaiyama's work in synthetic control, stereoselective synthesis of carbohydrates, the stereoselective aldol, and Michael reactions. This unique book makes accessible much research that has only been available in Japanese, and provides a rare account of the contributions of one of the world's leading chemists.
