Organic Chemistry of Drug Degradation

DOWNLOAD NOW »

Author: Min Li

Publisher: Royal Society of Chemistry

ISBN: 1782625631

Category: Medical

Page: 306

View: 5644

The vast majority of drugs are organic molecular entities. A clear understanding of the organic chemistry of drug degradation is essential to maintaining the stability, efficacy, and safety of a drug product throughout its shelf-life. During analytical method development, stability testing, and pharmaceutical manufacturing troubleshooting activities, one of the frequently occurring and usually challenging events would be the identification of drug degradants and understanding of drug degradation mechanisms and pathways. This book is written by a veteran of the pharmaceutical industry who has first-hand experience in drug design and development, drug degradation mechanism studies, analytical development, and manufacturing process troubleshooting and improvement. The author discusses various degradation pathways with an emphasis on the mechanisms of the underlying organic chemistry, which should aid greatly in the efforts of degradant identification, formulation development, analytical development, and manufacturing process improvement. Organic reactions that are significant in drug degradation will first be reviewed and then illustrated by examples of drug degradation reported in the literature. The author brings the book to a close with a final chapter dedicated to the strategy for rapid elucidation of drug degradants with regard to the current regulatory requirements and guidelines. One chapter that should be given special attention is Chapter 3, Oxidative Degradation. Oxidative degradation is one of the most common degradation pathways but perhaps the most complex one. This chapter employs more than sixty drug degradation case studies with in-depth discussion in regard to their unique degradation pathways. With the increasing regulatory requirements on the quality and safety of pharmaceutical products, in particular with regard to drug impurities and degradants, the book will be an invaluable resource for pharmaceutical and analytical scientists who engage in formulation development, analytical development, stability studies, degradant identification, and support of manufacturing process improvement. In addition, it will also be helpful to scientists engaged in drug discovery and development as well as in drug metabolism studies.

Modern Pharmaceutics, Fourth Edition

DOWNLOAD NOW »

Author: Gilbert S. Banker,Juergen Siepmann,Christopher Rhodes

Publisher: CRC Press

ISBN: 9780824744694

Category: Medical

Page: 860

View: 2303

"Completely revised and expanded throughout. Presents a comprehensive integrated, sequenced approach to drug dosage formulation, design, and evaluation. Indentifies the pharmacodynamic and physicochemical factors influencing drug action through various routes of administration."

Pharmaceutical Stress Testing

Predicting Drug Degradation, Second Edition

DOWNLOAD NOW »

Author: Steven W. Baertschi,Karen M. Alsante,Robert A. Reed

Publisher: CRC Press

ISBN: 1439801800

Category: Medical

Page: 612

View: 6823

The second edition of Pharmaceutical Stress Testing: Predicting Drug Degradation provides a practical and scientific guide to designing, executing and interpreting stress testing studies for drug substance and drug product. This is the only guide available to tackle this subject in-depth. The Second Edition expands coverage from chemical stability into the physical aspects of stress testing, and incorporates the concept of Quality by Design into the stress testing construct / framework. It has been revised and expanded to include chapters on large molecules, such as proteins and antibodies, and it outlines the changes in stress testing that have emerged in recent years. Key features include: A renowned Editorial team and contributions from all major drug companies, reflecting a wealth of experience. 10 new chapters, including Stress Testing and its relationship to the assessment of potential genotoxic degradants, combination drug therapies, proteins, oligonucleotides, physical changes and alternative dosage forms such as liposomal formulations Updated methodologies for predicting drug stability and degradation pathways Best practice models to follow An expanded Frequently Asked Questions section This is an essential reference book for Pharmaceutical Scientists and those working in Quality Assurance and Drug Development (analytical sciences, formulations, chemical process, project management).

The Organic Chemistry of Drug Design and Drug Action

DOWNLOAD NOW »

Author: Richard B. Silverman

Publisher: Elsevier

ISBN: 0080571239

Category: Science

Page: 422

View: 6797

This is a new approach to the teaching of medicinal chemistry. The knowledge of the physical organic chemical basis of drug design and drug action allows the reader to extrapolate to the many related classes of drugs described in standard medicinal chemistry texts. Students gain a solid foundation to base future research endeavors upon: drugs not yet developed are thus covered! n Emphasizes the use of the principles of physical organic chemistry as a basis for drug design n Discusses organic reaction mechanisms of clinically important drugs with mechanistic schemes n Uses figures and literature references extensively throughout n This text is not merely a "compilation of drugs and uses," but features selected drugs as examples of the organic chemical basis for any and all drug design applications

Einführung in die Molekülspektroskopie

Die Spektren und Strukturen von Einfachen Freien Radikalen

DOWNLOAD NOW »

Author: Gerhard Herzberg

Publisher: Springer-Verlag

ISBN: 3642723047

Category: Science

Page: 188

View: 7460

(Wissenschaftliche Forschungsberichte, Reihe I, Abt. A, Band 74)

The Organic Chemistry of Drug Design and Drug Action, Power PDF

DOWNLOAD NOW »

Author: Richard B. Silverman

Publisher: Elsevier

ISBN: 0080575382

Category: Medical

Page: 1275

View: 1418

This CD-ROM edition of Silverman's Organic Chemisry of Drug Design and Drug Action, Second Edition reflects the significant changes in the drug industry in recent years, using an accessible interactive approach. This CD-ROM integrates the author's own PowerPoint slides, indexed and linked to the book pages in PDF format. The three-part structure includes an all-electronic text with full-text search capabilites and nearly 800 powerpoint slides. This is a unique and powerful combination of electronic study guide and full book pages. Users can hyperlink seamlessly from the main text to key points and figures on the outline and back again. It serves as a wonderful supplement for instructors as well as a fully integrated text and study aid for students. * Three-part package includes 1) powerpoint, 2) integrated powerpoint and pdf-based text, and 3) fully searchable PDF-based text with index * Includes new full-color illustrations, structures, schemes, and figures as well as extensive chapter problems and exercises * User-friendly buttons transition from overview (study-guide) format to corresponding book page and back with the click of a mouse * Full-text search capabality an incomparable tool for researchers seeking specific references and/or unindexed phrases

Neue Kohlenstoffmaterialien

Eine Einführung

DOWNLOAD NOW »

Author: Anke Krüger

Publisher: Springer-Verlag

ISBN: 3835190989

Category: Technology & Engineering

Page: 473

View: 3666

Kohlenstoffmaterialien, ihre Eigenschaften, ihre Reaktivität und ihre Anwendungsmöglichkeiten sind Gegenstand dieses Lehrbuches. Besonderer Wert wird auf die Darstellung der Untersuchungsmethoden gelegt. Nach einer Einführung zu traditionellen Kohlenstoffmaterialien (Graphit, Diamant, Ruß, etc.) werden schwerpunktmäßig die aktuell erforschten Materialien wie Nanotubes, Fullerene, CVD-Diamant und Nanodiamant behandelt.

Structure Elucidation in Organic Chemistry

The Search for the Right Tools

DOWNLOAD NOW »

Author: Maria-Magdalena Cid,Jorge Bravo

Publisher: John Wiley & Sons

ISBN: 3527664637

Category: Science

Page: 552

View: 6337

Intended for advanced readers, this is a review of all relevant techniques for structure analysis in one handy volume. As such, it provides the latest knowledge on spectroscopic and related techniques for chemical structure analysis, such as NMR, optical spectroscopy, mass spectrometry and X-ray crystallography, including the scope and limitation of each method. As a result, readers not only become acquainted with the techniques, but also the advantages of the synergy between them. This enables them to choose the correct analytical method for each problem, saving both time and resources. Special emphasis is placed on NMR and its application to absolute configuration determination and the analysis of molecular interactions. Adopting a practical point of view, the author team from academia and industry guarantees both solid methodology and applications essential for structure determination, equipping experts as well as newcomers with the tools to solve any structural problem.

Pharmaceutical Organic Chemistry -E-Book

DOWNLOAD NOW »

Author: S.K. Bhasin,Reena Gupta

Publisher: Elsevier Health Sciences

ISBN: 8131232670

Category: Medical

Page: 812

View: 8984

Pharmaceutical Organic Chemistry has been written keeping in mind the severe need for a comprehensive text to meet the curriculum needs of the undergraduate pharmacy students. It not only provides all the curriculum topics to the students but also contains all the vital reactions/mechanisms that the students look for in an organic chemistry book. Entire subject matter has been written in a systematic and lucid style in simple language. All the basic concepts and fundamentals of organic chemistry have been explained with well-chosen examples. For better understanding of the subject matter, important points have been highlighted in the form of the textboxes titled as Remember, Learning Plus and Noteworthy Points, wherever required. Summary of the topics in the form of Memory Focus has been given at relevant places to help the students to revise the subject matter quickly. Stepwise mechanism of the reactions as per the syllabus has been illustrated, laying emphasis on the reactive intermediates involved. At the end of each chapter, Revision Questions including descriptive questions and short answer questions have been given for the students to practice. Multiple Choice Questions with answers have been included at the end of each chapter.

Stabilitätsprüfung in der Pharmazie

Theorie und Praxis

DOWNLOAD NOW »

Author: Wolfgang Grimm,Goetz Harnischfeger,Martin Tegtmeier

Publisher: N.A

ISBN: 9783871932700

Category:

Page: 520

View: 5653

Chemical and Structural Approaches to Rational Drug Design

DOWNLOAD NOW »

Author: David B. Weiner,William V. Williams

Publisher: CRC Press

ISBN: 9780849378188

Category: Medical

Page: 288

View: 3212

This book is the first to provide both a broad overview of the current methodologies being applied to drug design and in-depth analyses of progress in specific fields. It details state-of-the-art approaches to pharmaceutical development currently used by some of the world's foremost laboratories. The book features contributors from a variety of fields, new techniques, previously unpublished data, and extensive reference lists.

The Organic Chemistry of Sugars

DOWNLOAD NOW »

Author: Daniel E. Levy,Péter Fügedi

Publisher: CRC Press

ISBN: 9781420027952

Category: Science

Page: 904

View: 7832

Intrigued as much by its complex nature as by its outsider status in traditional organic chemistry, the editors of The Organic Chemistry of Sugars compile a groundbreaking resource in carbohydrate chemistry that illustrates the ease at which sugars can be manipulated in a variety of organic reactions. Each chapter contains numerous examples demonstrating the methods and strategies that apply mainstream organic chemistry to the chemical modification of sugars. The book first describes the discovery, development, and impact of carbohydrates, followed by a discussion of protecting group strategies, glycosylation techniques, and oligosaccharide syntheses. Several chapters focus on reactions that convert sugars and carbohydrates to non-carbohydrate molecules including the substitution of sugar hydroxyl groups to new groups of synthetic or biological interest, cyclitols and carbasugars, as well as endocyclic heteroatom substitutions. Subsequent chapters demonstrate the use of sugars in chiral catalysis, their roles as convenient starting materials for complex syntheses involving multiple stereogenic centers, and syntheses for monosaccharides. The final chapters focus on new and emerging technologies, including approaches to combinatorial carbohydrate chemistry, the biological importance and chemical synthesis of glycopeptides, and the medicinally significant concept of glycomimetics. Presenting the organic chemistry of sugars as a solution to many complex synthetic challenges, The Organic Chemistry of Sugars provides a comprehensive treatment of the manipulation of sugars and their importance in mainstream organic chemistry. Daniel E. Levy, editor of the Drug Discovery Series, is the founder of DEL BioPharma, a consulting service for drug discovery programs. He also maintains a blog that explores organic chemistry.

Stability of Drugs and Dosage Forms

DOWNLOAD NOW »

Author: Sumie Yoshioka,Valentino J. Stella

Publisher: Springer Science & Business Media

ISBN: 0306468298

Category: Medical

Page: 270

View: 8478

Drug products are complex mixtures of drugs and excipients and, as such, their chemical and physical stability kinetics are complex. This book discusses the stability of these dosage forms with preformulation studies through to the studies on the final products. The book is intended for graduate students, researchers and professionals in the field of Pharmaceutics and Pharmaceutical Chemistry.

Analysis of Drug Impurities

DOWNLOAD NOW »

Author: Richard J. Smith,Michael L. Webb

Publisher: John Wiley & Sons

ISBN: 0470994223

Category: Science

Page: 288

View: 6375

A key component of the overall quality of a pharmaceutical is control of impurities, as their presence, even in small amounts, may affect drug safety and efficacy. The identification and quantification of impurities to acceptable standards presents a significant challenge to the analytical chemist. Analytical science is developing rapidly and provides increasing opportunity to identify the structure, and therefore the origin and safety implications of these impurities, and the challenges of their measurement drives the development of modern quantitative methods. Written for both practicing and student analytical chemists, Analysis of Drug Impurities provides a detailed overview of the challenges and the techniques available to permit accurate identification and quantification of drug impurities.

Essentials of Organic Chemistry

For Students of Pharmacy, Medicinal Chemistry and Biological Chemistry

DOWNLOAD NOW »

Author: Paul M. Dewick

Publisher: John Wiley & Sons

ISBN: 1118681967

Category: Science

Page: 704

View: 969

Essentials of Organic Chemistry is an accessible introduction tothe subject for students of Pharmacy, Medicinal Chemistry andBiological Chemistry. Designed to provide a thorough grounding infundamental chemical principles, the book focuses on key elementsof organic chemistry and carefully chosen material is illustratedwith the extensive use of pharmaceutical and biochemicalexamples. In order to establish links and similarities the book placesprominence on principles and deductive reasoning withcross-referencing. This informal text also places the main emphasison understanding and predicting reactivity rather than syntheticmethodology as well as utilising a mechanism based layout andfeaturing annotated schemes to reduce the need for textualexplanations. * tailored specifically to the needs of students of PharmacyMedical Chemistry and Biological Chemistry * numerous pharmaceutical and biochemical examples * mechanism based layout * focus on principles and deductive reasoning This will be an invaluable reference for students of PharmacyMedicinal and Biological Chemistry.

Handbook of Isolation and Characterization of Impurities in Pharmaceuticals

DOWNLOAD NOW »

Author: Satinder Ahuja,Karen Mills Alsante

Publisher: Academic Press

ISBN: 9780120449828

Category: Medical

Page: 414

View: 468

The United States Food and Drug Administration (FDA) and other regulatory bodies around the world require that impurities in drug substance and drug product levels recommended by the International Conference on Harmonisation (ICH) be isolated and characterized. Identifying process-related impurities and degradation products also helps us to understand the production of impurities and assists in defining degradation mechanisms. When this process is performed at an early stage, there is ample time to address various aspects of drug development to prevent or control the production of impurities and degradation products well before the regulatory filing and thus assure production of a high-quality drug product. This book, therefore, has been designed to meet the need for a reference text on the complex process of isolation and characterization of process-related (synthesis and formulation) impurities and degradation products to meet critical requlatory requirements. It's objective is to provide guidance on isolating and characterizing impurities of pharmaceuticals such as drug candidates, drug substances, and drug products. The book outlines impurity identification processes and will be a key resource document for impurity analysis, isolation/synthesis, and characterization. - Provides valuable information on isolation and characterization of impurities. - Gives a regulatory perspective on the subject. - Describes various considerations involved in meeting regulatory requirements. - Discusses various sources of impurities and degredation products.

Pharmaceutical Chemistry E-Book

DOWNLOAD NOW »

Author: David G. Watson

Publisher: Elsevier Health Sciences

ISBN: 070204850X

Category: Medical

Page: 652

View: 9583

This new book, from the editor of the highly successful Pharmaceutical Analysis, sets out to define the area of pharmaceutical chemistry as distinct from medicinal chemistry. It focuses less on prototypes of drugs that perhaps never came to market and more on the drugs currently in use. The emphasis in the book is on the physicochemical properties of drug molecules and, in so far as they are known, the way that these properties govern the interaction of the drug with its target. Important physicochemical properties include pKa and partition coefficient and the properties of the structural elements within the drug which provide interactions with the target via a range of intermolecular forces. The last fifteen years has seen a great advance in the knowledge of protein structures and a strong emphasis is given to the interaction of drugs with proteins which shape the majority of drug mechanisms. Features: Focus on intramolecular actions Mechanisms of action richly illustrated Self-assessment included Comprehensive chapters on vitamins and biotechnological products This new book, from the editor of the highly successful Pharmaceutical Analysis, sets out to define the area of pharmaceutical chemistry as distinct from medicinal chemistry. It focuses less on prototypes of drugs that perhaps never came to market and more on the drugs currently in use. The emphasis in the book is on the physicochemical properties of drug molecules and, in so far as they are known, the way that these properties govern the interaction of the drug with its target. Important physicochemical properties include pKa and partition coefficient and the properties of the structural elements within the drug which provide interactions with the target via a range of intermolecular forces. The last fifteen years has seen a great advance in the knowledge of protein structures and a strong emphasis is given to the interaction of drugs with proteins which shape the majority of drug mechanisms. Features: Focus on intramolecular actions Mechanisms of action richly illustrated Self-assessment included Comprehensive chapters on vitamins and biotechnological products

Atmospheric Degradation of Organic Substances

Persistence, Transport Potential, Spatial Range

DOWNLOAD NOW »

Author: Walter Klöpffer,Burkhard O. Wagner

Publisher: John Wiley & Sons

ISBN: 3527611622

Category: Science

Page: 258

View: 6081

This compilation on the degradation of 1,100 commercially important chemical products is the first publication to make this knowledge publicly accessible in one book. The data and annotations have been painstakingly assembled over a 10-year period in a collaboration between academia and regulatory authorities. The work explains in detail the methods, including computational ones, for the environmental assessment of volatile and semi-volatile substances, and is rounded off with data tables of degradation rates. A key resource for manufacturers and regulators of such substances.

Characterization of Impurities and Degradants Using Mass Spectrometry

DOWNLOAD NOW »

Author: Guodong Chen

Publisher: John Wiley & Sons

ISBN: 0470922974

Category: Science

Page: 496

View: 3043

The book highlights the current practices and future trends in structural characterization of impurities and degradants. It begins with an overview of mass spectrometry techniques as related to the analysis of impurities and degradants, followed by studies involving characterization of process related impurities (including potential genotoxic impurities), and excipient related impurities in formulated products. Both general practitioners in pharmaceutical research and specialists in analytical chemistry field will benefit from this book that will detail step-by-step approaches and new strategies to solve challenging problems related to pharmaceutical research.