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Natural Products Chemistry

Author: Raymond Cooper
Publisher: CRC Press
ISBN: 1466567627
Size: 50.95 MB
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Notoriously cumbersome to isolate and challenging to synthesize, the path of natural products to viable drugs is an arduous journey. Yet compounds isolated from nature may possess fascinating structures, biological profiles and pharmaceutical potential far greater than anything made by man. Natural Products Chemistry: Sources, Separations and Structures presents a practical guide to sourcing, isolating, and discovering new compounds from nature many of which become pharmaceutical drugs. This book emphasizes the challenges and advantages of products acquired from nature, compared to those obtained from combinatorial chemistry. A basic introduction, the book describes the whole cycle from farm to final compound, backed up by case studies drawn from industry and research applications. It broadens the scope of applications and draws upon examples from various sources. Natural products chemistry, as taught today, draws its examples mainly from marine chemistry or plant chemistry; however, there is also a fascinating and rich world of fermented (microbial and algal) products leading to complex structures. Thus, the book draws upon examples from the microbial world and from insects too. Therefore, this is a source of bioactive metabolites, not traditionally available in academic settings, more the mainstay of the pharmaceutical industry. Providing a roadmap of the process of collecting a compound from nature, isolating the active ingredient, and determining the chemical structure, this book provides a unique approach to the world of natural products.

Natural Products Isolation

Author: Richard J. P. Cannell
Publisher: Springer Science & Business Media
ISBN: 0896033627
Size: 34.20 MB
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Natural Products Isolation provides a comprehensive introduction to techniques for the extraction and purification of natural products from all biological sources. Geared to scientists with little experience of natural products extraction, but offering even skilled researchers valuable advice and insight, Natural Products Isolation lays the foundation for the potential extractor to isolate natural substances efficiently. Its methods and guidance will almost certainly play a major role in today's natural product discovery and development.

Botanical Miracles

Author: Raymond Cooper
Publisher: CRC Press
ISBN: 1498788181
Size: 73.71 MB
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As the shortcomings of purely synthetic approaches to biochemical discovery and development are becoming more apparent, a renaissance of interest in the chemistry of natural products as sources for new compounds is occurring. A unique approach to natural products chemistry, Botanical Miracles: Chemistry of Plants That Changed the World relates applications of plant extracts to the historical progress of civilization. It focuses on selected plants from around the world, connecting their stories and properties to the development of modern marvels such as medicinal compounds, nutrition products, beverages, perfumes and organic pigments. Each chapter describes a particular group of plant extracts from various perspectives, including their chemistry, interest and value to man and historical background. The ends of the chapters pose challenging questions. Introducing plants that are emerging into more prominent roles in human life and addressing current challenges, Botanical Miracles presents a fascinating point of entry to the chemistry of important natural products. It examines plants and their extracts through the key functional groups, building blocks and concepts of organic chemistry. This book provides, in a single source, information and learning opportunities of value to a wide range of individuals involved in the fields of chemistry, medicine, nutrition or cosmetics whether they be students, educators, researchers or those who simply wish to extend their horizons.

Naturstoffe Der Chemischen Industrie

Author: Bernd Schäfer
Publisher: Spektrum Akademischer Verlag
ISBN: 9783827416148
Size: 30.11 MB
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Dieses Buch geht auf eine Vorlesung an der Universität Heidelberg zurück und richtet sich in erster Linie an Studenten, aber auch an Hochschuldozenten, Chemielehrer und Industriechemiker. Es vermittelt Einblicke in die moderne Naturstoffchemie und die Entwicklung komplexer Moleküle (asymmetrische und heterozyklische Verbindungen, polyzyklische Strukturen, makrozyklische und kleine Ringe) in der chemischen Industrie. Ein wichtiges Anliegen des Autors besteht darin, exemplarisch zu belegen, welche Aspekte eine Rolle spielen, wenn man im technischen Maßstab komplexe Verbindungen "auf elegantem Weg" herstellen will. So lernt der Leser die Grundlagen, die für einen jungen Chemiker in der chemischen Industrie unentbehrlich sind. Das Buch deckt ein breites Spektrum von Naturstoffen oder davon abgeleiteten Substanzen ab, darunter Farbstoffe wie etwa Indigo, in der Nahrungsmittelindustrie verwendete Verbindungen wie Coffein, Vanillin, Carotenoide und Aminosäuren, Arzneimittel wie Antibiotika, Opioide, Lipstatin und Steroide, Agrochemikalien wie Herbizide, Fungizide und Insektizide oder auch Duftstoffe wie Moschus und Damascon. Jedes Kapitel liefert auch historische und soziale Hintergrundinformationen zu dem jeweiligen Naturstoff und beschreibt seine biologische Aktivität, seine Entdeckung und seine wichtigsten Modifikationen durch die industrielle Chemie. In vielen Fällen wird die industrielle Synthese mit der Biosynthese verglichen. Überdies beleuchtet das Buch moderne Aspekte und zukünftige Entwicklungen in der Naturstoffsynthese. Ohne auf jeden industriell hergestellten Naturstoff einzugehen - was angesichts der Fülle der Substanzen in einem Lehrbuch auch gar nicht möglich ist -, bietet das verständlich geschriebene Werk einen guten Überblick über das gesamte Gebiet. Dabei kommt die "grüne Chemie" ebenso zur Sprache wie die Atomökonomie und "Eleganz" in der industriellen Naturstoffsynthese.

Massenspektrometrie

Author: Jürgen H Gross
Publisher: Springer-Verlag
ISBN: 3827429811
Size: 69.91 MB
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Mit Massenspektrometrie – ein Lehrbuch liegt ein Werk vor, das mit seiner umfassenden, präzisen Darstellung sowie seinen vielen gelungenen Illustrationen und Fotos eine Lücke auf dem deutschsprachigen Markt schließt. Dieses im englischsprachigen Raum bereits gut etablierte Buch führt auf grundlegende Weise an die Massenspektrometrie heran, indem es die Prinzipien, Methoden und Anwendungen logisch aufeinander aufbauend erklärt. Schritt für Schritt lernt der Leser, was diese analytische Methode leisten kann, auf welch vielfältige Art Massenspektrometer isolierte Ionen in der Gasphase erzeugen, selektieren und manipulieren können und wie man aus den resultierenden Massenspektren analytische Information gewinnt. Moderne sanfte Ionisationsmethoden wie ESI, APCI oder MALDI, klassische Verfahren wie EI, CI, FAB oder FD, Oberflächentechniken wie DESI oder DART und elementmassenspektrometrische Verfahren werden didaktisch durchdacht behandelt. Studienanfänger werden von dem Werk ebenso profitieren wie Fortgeschrittene und Praktiker. Ergänzend zum Buch betreibt der Autor eine frei zugängliche (englischsprachige) Internetseite mit zahlreichen Übungsaufgaben, Lösungen und Bonus-Material unter http://www.ms-textbook.com

Natural Products Isolation

Author: G.H. Wagman
Publisher: Elsevier
ISBN: 9780080858487
Size: 69.10 MB
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This new book encompasses, in great detail, the most recent progress made in the isolation and separation of natural products. It covers antibiotics, marine and plant-derived substances, enzyme inhibitors and interferons. The most recent separation methodology is described. Although there is a bias toward antibiotics, it was done because this is still the largest natural products area of research. The fourteen chapters are written by experts in their respective fields. The first two chapters are largely devoted to new methodology applied to purification of a variety of compounds. They include an extensive review and new applications of counter-current chromatography and the newly emerging HPLC-photodiode array technology. Chapter 3 provides a review of affinity chromatography applied to the separation of antibiotics for the first time. Next are chapters on antimicrobials with an update on all the most recent &bgr;-lactam (after 1976) discoveries. A comprehensive review of a very important class of antiparasitic agents - the avermectins - follows. An update of isolation and purification of a variety of marine-derived compounds is next. The succeeding chapter is a comprehensive review of the most recent developments in isolation and purification of interferons. This is followed by a discussion of enzyme inhibitors and their isolation and purification and ties in with a chapter on plant-derived natural products, some of which are also in this same category. The final chapter is a futuristic essay indicating the isolation of minute amounts of natural products and the fascinating biological properties which they possess. The book has extensive isolation schemes, tables, figures and chemical structures. In many instances a short summary of the producing organism, brief chemical description and structure and biological activity of the compounds is presented. Detailed information of extraction, separation and purification techniques follow. Each chapter has an extensive bibliography and, where applicable, an appendix showing sources of materials and equipment. A detailed index to the subject matter is included at the end of the book. The book thus offers the reader: up-to-date reviews (including 1988) of specific topics in the natural products field not to be found elsewhere; information on new chromatographic methods and techniques described in sufficient detail to be utilized by investigators in this area of research; and extensive references to enable the serious researcher to pursue particular information. It will appeal to pharmaceutical and natural products researchers and is a valuable acquisition for university chemistry and biochemistry departments.

Interpretation Von Massenspektren

Author: Fred W. McLafferty
Publisher: Springer Spektrum
ISBN: 9783642398483
Size: 21.43 MB
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Die Interpretation von Massenspektren erlernt man am besten durch Praxis. Mit dieser Überzeugung hat McLafferty die Originalausgabe dieses Buches in mehrere erfolgreiche Auflagen geführt. Schritt für Schritt, anhand zahlreicher Beispiele, führt er den Leser zum Verständnis von Massenspektren und Massenspektrometrie. So schafft dieses Buch die Grundlage für das Verständnis und die optimale Nutzung einer Methode, die als eine der wichtigsten in der analytischen Chemie gilt.

Bioactive Natural Products

Author: Steven M. Colegate
Publisher: CRC Press
ISBN: 9781420006889
Size: 35.43 MB
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Bioactive natural products are proving to be a rich source of novel therapeutics to both protect against and combat diseases, as well as serve as lead compounds in crop protection. Following the successful format of the first edition, this volume brings together collective research from many new contributors and emphasizes the rationale behind the successful detection, isolation, and structure determination of specific compounds. The text encompasses a diverse range of techniques that can be applied to terrestrial and aquatic sources. It also allows you to understand how source material can be selected to enhance your opportunity to discover and utilize novel bioactive natural products. New to the Second Edition— · Advances in the application of NMR spectroscopy and mass spectrometry, bioactive chemical detection and extraction, dereplication, and novel bioassay development · New case studies and illustrations that demonstrate the practical applications of specific techniques · A group of new contributors presenting research from their own laboratories that emphasize both the philosophy and rationale behind detection, isolation, and structural determination Following an overview of natural product chemistry techniques and approaches, many new chapters discuss selection of source material, quantitative NMR, high speed counter-current chromatography, dereplication of extracts, and methods to determine the stereochemistry of bioactive natural products. Examinations of new technologies including LC-NMR, biosensors, and biofingerprinting accompany discussions on the search for specific activities in anticancer and antimalarial applications, seed germination stimulation, and mammalian toxicity. With the participation from active researchers, this definitive work supplies a vital extension and an enduring contribution to the science and art of bioactive natural product detection, isolation, and structural determination.

Stereoselective Synthesis Of Drugs And Natural Products

Author: Vasyl Andrushko
Publisher: John Wiley & Sons
ISBN: 1118628330
Size: 10.39 MB
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Brings together the best tested and proven stereoselective synthetic methods Both the chemical and pharmaceutical industries are increasingly dependent on stereoselective synthetic methods and strategies for the generation of new chiral drugs and natural products that offer specific 3-D structures. With the publication of Stereoselective Synthesis of Drugs and Natural Products, researchers can turn to this comprehensive two-volume work to guide them through all the core methods for the synthesis of chiral drugs and natural products. Stereoselective Synthesis of Drugs and Natural Products features contributions from an international team of synthetic chemists and pharmaceutical and natural product researchers. These authors have reviewed the tremendous body of literature in the field in order to compile a set of reliable, tested, and proven methods alongside step-by-step guidance. This practical resource not only explores synthetic methodology, but also reaction mechanisms and applications in medicinal chemistry and drug discovery. The publication begins with an introductory chapter covering general principles and methodologies, nomenclature, and strategies of stereoselective synthesis. Next, it is divided into three parts: Part One: General Methods and Strategies Part Two: Stereoselective Synthesis by Bond Formation including C-C bond formation C-H bond formation C-O bond formation C-N bond formation Other C-heteroatom formation and other bond formation Part Three: Methods of Analysis and Chiral Separation References in every chapter serve as a gateway to the literature in the field. With this publication as their guide, chemists involved in the stereoselective synthesis of drugs and natural products now have a single, expertly edited source for all the methods they need.

Chinese Medicine

Author: Raymond Cooper
Publisher: CRC Press
ISBN: 9781482257588
Size: 20.37 MB
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This classroom-tested book contains a balance of chemistry, history of TCM, and the theory and practice of a modern TCM practitioner. It reviews the scientific methods for collecting data and supporting evidence for the efficacy and safety of drugs and reflects on the different views on health, disease and therapy and their impacts on the relationships between man and nature.