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Covering every essential element in the development of chiral products, this reference provides a solid overview of the formulation, biopharmaceutical characteristics, and regulatory issues impacting the production of these pharmaceuticals. It supports researchers as they evaluate the pharmacodynamic, pharmacokinetic, and toxicological characteristics of specific enantiomers and chiral drug compounds and addresses in one convenient reference all the major challenges pertaining to drug chirality that have been neglected in the literature. Chirality in Drug Design and Development collects the latest studies from an interdisciplinary team of experts on chiral drug design.
Bisher gab es kein Buch, das sich speziell mit der Chiralität von Agrochemikalien beschäftigte, obwohl dieses Gebiet zunehmende Beachtung in der Industrie findet. Diese Darstellung der Chiralität bei Insektiziden, Fungiziden, Herbiziden und anderen Klassen von Agrochemikalien schließt diese Lücke. Synthese, Analytik, biologische Aktivität, Wirkprinzip, Toxikologie, Metabolismus und Umweltschicksal jeder besprochenen Verbindung werden diskutiert. (8/98)
Chiral Organic Pollutants introduces readers to the growing challenges of chirality in synthetic chemicals. In this volume, contributors brilliantly summarize the characteristics of chiral pollutants to provide tools and techniques for effectively assessing their environmental and human health risks. Chapters cover recent research on the physicochemical properties, sources, exposure pathways, environmental fate, toxicity, and enantioselective analysis of chiral organic pollutants. Chiral Organic Pollutants also provides comprehensive discussions on the current trends in the synthesis and legislation of chiral chemicals. Key Features: Includes sampling and analytical methods for the enantioselective analysis of a wide array of chiral organic pollutants in food and the environment Summarizes recent research on the sources, fate, transport, and toxicity of chiral organic pollutants in the environment Critically examines the sources and pathways of chiral organic pollutants such as pesticides, pharmaceuticals, and flame retardants in food Includes a comprehensive discussion on current trends in the enantioselective synthesis and chiral switching of pesticides and pharmaceuticals Provides analysis of current national and international regulations of chiral synthetic chemicals The use of chiral synthetic chemicals such as pesticides, pharmaceuticals, personal care products, and halogenated flame retardants has significantly grown in the past 60 years. Hence, understanding the human and environmental health effects of chiral organic pollutants is crucial in the industry, academia, and policymaking. Chiral Organic Pollutants is an excellent textbook and reference for students, scientists, engineers, and policymakers interested in food quality, environmental pollution, chemical analysis, organic synthesis, and toxicology. Also available in the Food Analysis and Properties Series: Analysis of Nanoplastics and Microplastics in Food, edited by Leo. M.L. Nollet and Khwaja Salahuddin Siddiqi (ISBN: 9781138600188) Proteomics for Food Authentication, edited by Leo M.L. Nollet, and Semih Ötleş (ISBN: 9780367205058) Mass Spectrometry Imaging in Food Analysis, edited by Leo M.L. Nollet (ISBN: 9781138370692) For a complete list of books in this series, please visit our website at: www.crcpress.com/Food-Analysis--Properties/book-series/CRCFOODANPRO
A Practical Introduction to Stereochemistry Stereoisomers are compounds with the same chemical formula and connectivity but with different arrangements of their atoms in 3-dimensional space. Stereochemistry encompasses the study of stereoisomers and their properties. Despite having an identical chemical formula, stereoisomers can have drastically different biological, medicinal, and chemical properties. Basic Organic Stereochemistry explains in clear, concise terms the concepts and properties of stereoisomers. Ideal both as a text for advanced undergraduate or graduate students and as a handy guide for researchers in industry, this superb text covers: * Polarimetry and optical rotation * Internal coordinates, configuration, and conformation * Nature of stereoisomers * Barriers between stereoisomers and residual stereoisomers * Symmetry operators and symmetry point groups * Properties of stereoisomers and stereoisomer discrimination * Separation of stereoisomers, resolution, and racemization Suitable for students in organic and biological chemistry, Basic Organic Stereochemistry is unparalleled as a convenient text.
Provides, in one handbook, comprehensive coverage of one of the hottest topics in stereoselective chemistry Written by leading international authors in the field, this book introduces readers to C-H activation in asymmetric synthesis along with all of its facets. It presents stereoselective C-H functionalization with a broad coverage, from outer-sphere to inner-sphere C-H bond activation, and from the control of olefin geometry to the induction of point, planar and axial chirality. Moreover, methods wherein asymmetry is introduced either during the C-H activation or in a different elementary step are discussed. Presented in two parts?asymmetric activation of C(sp3)-H bonds and stereoselective synthesis implying activation of C(sp2)-H bonds?CH-Activation for Asymmetric Synthesis showcases the diversity of stereogenic elements, which can now be constructed by C-H activation methods. Chapters in Part 1 cover: C(sp3)-H bond insertion by metal carbenoids and nitrenoids; stereoselective C-C bond and C-N bond forming reactions through C(sp3)?H bond insertion of metal nitrenoids; enantioselective intra- and intermolecular couplings; and more. Part 2 looks at: C-H activation involved in stereodiscriminant step; planar chirality; diastereoselective formation of alkenes through C(sp2)?H bond activation; amongst other methods. -Covers one of the most rapidly developing fields in organic synthesis and catalysis -Clearly structured in two parts (activation of sp3- and activation of sp2-H bonds) -Edited by two leading experts in C-H activation in asymmetric synthesis CH-Activation for Asymmetric Synthesis will be of high interest to chemists in academia, as well as those in the pharmaceutical and agrochemical industry.
This book details chiroptical spectroscopic methods: electronic circular dichroism (ECD), optical rotatory dispersion (ORD), vibrational circular dichroism (VCD), and vibrational Raman optical activity (VROA). For each technique, the text presents experimental methods for measurements and theoretical methods for analyzing the experimental data. It also includes a set of experiments that can be adopted for undergraduate teaching laboratories. Each chapter is written in an easy-to-follow format for novice readers, with necessary theoretical formalism in appendices for advanced readers.
This book reviews the latest developments concerning the analysis, fate, behaviour and toxicity of pyrethroid insecticides. Over the last few decades, pyrethroid insecticides have increasingly replaced organochlorine pesticides due to their relatively lower mammalian toxicity, selective insecticide activity and lower environmental persistence. They represent 25% of global sales of insecticides, and are considered to be “safe” since they are converted to non-toxic metabolites by oxidative metabolism in fish and by hydrolysis in mammals. However, recent studies have demonstrated their environmental ubiquity, their bioaccumulation and their toxicity in various aquatic and terrestrial organisms, and even in humans. Featuring contributions by leading experts, the book discusses the physico-chemical properties and uses of pyrethroid insecticides; the latest chemical analytical methods; their occurrence in the environment, biota and food; and their isomeric and enantiomeric behaviour. It particularly highlights the toxicological effects and human exposure to pyrethroid insecticides, and also offers insights into the effects of the salmon industry on the marine environment with a case study of sea lice treatment using pyrethroids. This comprehensive book is a valuable source of information for environmental scientists, policymakers and producers interested in issues related to pyrethroid insecticides.
While working as a chromatographer in the pharmaceutical industry, it became apparent to the editor that there was a pressing need for a comprehensive reference text for analysts working on the resolution of enantiomers by liquid chromatography (LC). This need arises from the fact that, whereas previously it was very difficult to determine enantiomers by direct means, there is now a wide choice of direct LC methods. At the same time, regulatory authorities have been changing their attitudes towards the administration of pharmaceuticals as racemates, partly because it is now possible to study the individual enantiomers. Clearly this abundance of new information needs to be rationalized. More importantly, the chiral LC systems which are commercially available or readily accessible to the practising chromatographer needed to be reviewed and, to a much greater extent than in existing reviews or books, discussed in terms of their practical application. Accordingly this book is very much orientated towards the practical aspects of these commercially available and readily accessible chiral LC systems. To this end, it is written for practising chromatographers by a team of practising, experienced chromatographers who have spent many years tackling the problems presented by resolving enantiomers by LC. The practical aspects of common chiral LC systems cannot be fully understood if discussed in isolation.
This monograph contains a survey on the role of chirality in ecotoxicological processes. The focus is on environmental trace analysis. Areas such as toxicology, ecotoxicology, synthetic chemistry, biology, and physics are also covered in detail in order to explain the different properties of enantiomers in environmental samples. This monograph delivers a comprehensive survey for environmental trace analysts, analytical chemists, ecotoxicologists, food scientists and experienced lab workers.