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Computer–Based Structure Elucidation from Spectral Data

Computer–Based Structure Elucidation from Spectral Data PDF Author: Mikhail E. Elyashberg
Publisher: Springer
ISBN: 3662464020
Category : Science
Languages : en
Pages : 458

Book Description
Here, the authors introduce readers to solving molecular structure elucidation problems using the expert system ACD/Structure Elucidator. They explain in detail the concepts of the Computer-Assisted Structure Elucidation (CASE) approach and point out the crucial role of understanding the axiomatic nature of the data used to deduce the structure. Aspects covered include the main blocks of the expert system and essential features of the mathematical algorithms used. Graduate and PhD students as well as practicing chemists are provided with a detailed explanation of the various practical approaches depending on available spectral data peculiarities and the complexity of the unknown structure. This is supported by a large number of real-world completed examples, most of which are related to the structure elucidation of natural product molecules containing unusual skeletons. Dedicated software and further supplementary material are available at www.acdlabs.com/TeachingSE.

Computer–Based Structure Elucidation from Spectral Data

Computer–Based Structure Elucidation from Spectral Data PDF Author: Mikhail E. Elyashberg
Publisher: Springer
ISBN: 3662464020
Category : Science
Languages : en
Pages : 458

Book Description
Here, the authors introduce readers to solving molecular structure elucidation problems using the expert system ACD/Structure Elucidator. They explain in detail the concepts of the Computer-Assisted Structure Elucidation (CASE) approach and point out the crucial role of understanding the axiomatic nature of the data used to deduce the structure. Aspects covered include the main blocks of the expert system and essential features of the mathematical algorithms used. Graduate and PhD students as well as practicing chemists are provided with a detailed explanation of the various practical approaches depending on available spectral data peculiarities and the complexity of the unknown structure. This is supported by a large number of real-world completed examples, most of which are related to the structure elucidation of natural product molecules containing unusual skeletons. Dedicated software and further supplementary material are available at www.acdlabs.com/TeachingSE.

Contemporary Computer-Assisted Approaches to Molecular Structure Elucidation

Contemporary Computer-Assisted Approaches to Molecular Structure Elucidation PDF Author: Mikhail E Elyashberg
Publisher: Royal Society of Chemistry
ISBN: 1782625763
Category : Science
Languages : en
Pages : 505

Book Description
Computer-Assisted Structure Elucidation (CASE) systems are a combination of software algorithms and tools to support and enable chemists and spectroscopists engaged in the process of molecular structure elucidation via the analysis of spectroscopic data. These expert systems dramatically reduce the time associated with structure elucidation and improve the reliability of the results. Contemporary Computer-Assisted Approaches to Molecular Structure Elucidation describes the principles on which these expert systems for spectroscopic structure elucidation are based and concisely explains the algorithmic concepts behind the programs. The authors use their own personal experiences in the development of the Structure Elucidator (StrucEluc) CASE software system to discuss the present state-of-the-art in computer-assisted structure elucidation. Scientists that are presently using CASE systems will be interested in the algorithms and modern approaches and for organizations that are currently using the StrucEluc platform the book is designed to help researchers understand the strategies behind CASE as well as details regarding the StrucEluc platform. For scientists that have never used CASE systems they will now have access to all necessary information to understand CASE systems for mastering this new and very effective approach to structure elucidation. The authors overall goal is writing this book is to produce the 'must read' definitive text that will represent the results of decades of work to develop computer-assisted structure elucidation software systems. CASE systems are now powerful software tools commonly outperforming and correcting human interpretations of data. This book will also provide an historical perspective of the work of the founding fathers of the technique and identify the challenges that have been overcome to produce modern CASE systems.

Modern NMR Approaches to the Structure Elucidation of Natural Products

Modern NMR Approaches to the Structure Elucidation of Natural Products PDF Author: Antony Williams
Publisher: Royal Society of Chemistry
ISBN: 1849733937
Category : Science
Languages : en
Pages : 532

Book Description
The Ghanian plant Cryptolepis sanguinolenta is the source of a series of fascinating indoloquinoline alkaloids. The most unusual member of this alkaloid series was initially proposed to be a spiro nonacyclic structure, named cryptospirolepine, and was elucidated in 1993 based on the technologies available at that time. There were, however, several annoying attributes to the structure that bothered analysts for the ensuing 22 years. During the two decades that followed the initial work there have been enormous developments in NMR technology. Using new experimental approaches, specifically homodecoupled 1,1- and 1,n-HD-ADEQUATE NMR experiments developed in 2014, the structure of only a 700 µg sample of cryptospirolepine has been revised and is shown on the cover of this volume. The confluence of the NMR technological and methodological advances that allowed the revision of the structure of cryptospirolepine using a submilligram sample seems a fitting example for this book, which is dedicated to the NMR characterization of various classes of natural products. Volume 2 considers data processing and algorithmic based analyses tailored to natural product structure elucidation and reviews the application of NMR to the analysis of a series of different natural product families including marine natural products, terpenes, steroids, alkaloids and carbohydrates. Volume 1 discusses contemporary NMR approaches including optimized and future hardware and experimental approaches to obtain both the highest quality and most appropriate spectral data for analysis. These books, bringing together acknowledged experts, uniquely focus on the combination of experimental approaches and modern hardware and software applied to the structure elucidation of natural products. The volumes will be an essential resource for NMR spectroscopists, natural product chemists and industrial researchers working on natural product analysis or the characterization of impurities and degradation products of pharmaceuticals that can be as scarce as natural product samples.

Applied Chemoinformatics

Applied Chemoinformatics PDF Author: Thomas Engel
Publisher: John Wiley & Sons
ISBN: 352734201X
Category : Science
Languages : en
Pages : 660

Book Description
Edited by world-famous pioneers in chemoinformatics, this is a clearly structured and applications-oriented approach to the topic, providing up-to-date and focused information on the wide range of applications in this exciting field. The authors explain methods and software tools, such that the reader will not only learn the basics but also how to use the different software packages available. Experts describe applications in such different fields as structure-spectra correlations, virtual screening, prediction of active sites, library design, the prediction of the properties of chemicals, the development of new cosmetics products, quality control in food, the design of new materials with improved properties, toxicity modeling, assessment of the risk of chemicals, and the control of chemical processes. The book is aimed at advanced students as well as lectures but also at scientists that want to learn how chemoinformatics could assist them in solving their daily scientific tasks. Together with the corresponding textbook Chemoinformatics - Basic Concepts and Methods (ISBN 9783527331093) on the fundamentals of chemoinformatics readers will have a comprehensive overview of the field.

Organic Structure Analysis

Organic Structure Analysis PDF Author: Phillip Crews
Publisher:
ISBN:
Category : Medical
Languages : en
Pages : 664

Book Description
"Organic Structure Analysis, Second Edition, is the only text that teaches students how to solve structures as they are solved in actual practice. Ideal for advanced undergraduate and graduate courses in organic structure analysis, organic structure identification, and organic spectroscopy, it emphasizes real applications-integrating theory as needed - and introduces students to the latest spectroscopic methods." --Book Jacket.

Modern NMR Approaches to the Structure Elucidation of Natural Products

Modern NMR Approaches to the Structure Elucidation of Natural Products PDF Author: Antony J. Williams
Publisher: Royal Society of Chemistry
ISBN: 184973383X
Category : Science
Languages : en
Pages : 344

Book Description
The first volume in a two-part set that discusses contemporary NMR approaches for the structure elucidation of natural products. It covers optimized hardware and experimental approaches.

Anthropic Awareness

Anthropic Awareness PDF Author: Csaba Szantay Jr.
Publisher: Elsevier
ISBN: 0124199798
Category : Science
Languages : en
Pages : 465

Book Description
Anthropic Awareness: The Human Aspects of Scientific Thinking in NMR Spectroscopy and Mass Spectrometry blends psychology, philosophy, physics, mathematics, and chemistry, describing a human-centered philosophy of the essence of scientific thinking in the natural sciences and in everyday life. It addresses the reasons why we are prone to make errors in our conclusions and how to avoid such mistakes, also exploring a number of the "mental traps" that can lead to both individual mistakes and mass misconceptions. The book advocates that by understanding the nature of these mental traps we can adopt tactics to safely evade them. It includes Illustrative examples of common scientific misunderstandings and mental traps in both the theory and real-life application of NMR spectroscopy and mass spectrometry. - Provides strategies on how to deal with molecular challenges and instrument limitations - Presents multiple applications of small molecule structure elucidation using NMR, MS, IR, and UV - Explores critical topics, including anthropic awareness (AA), NMR Spectroscopy, mass spectrometry, scientific thinking, and more - Includes tactics on how to Improve quality control and data interpretation skills while minimizing data analysis time and increasing confidence in results - Presents coverage on tactics to optimize experimental NMR parameters and enhance NMR vocabulary

Natural Products

Natural Products PDF Author: Dieter Sicker
Publisher: John Wiley & Sons
ISBN: 3527341943
Category : Science
Languages : en
Pages : 435

Book Description
Written by experienced authors, this book presents numerous natural everyday products with a high range of structural diversity. Twenty natural products have been arranged in five sections, describing three alkaloids, five colored compounds, three carbohydrates and glycosides, seven terpenoids, and two aromatic compounds. Adopting a highly didactical approach, each chapter features a uniform structure: Background, in-depth information about isolation processes and structural characterization as well as a Q&A section at the end. Alongside the theoretical information many practical hints for the laboratory work are also included. A comprehensive overview of UV-, IR- and NMR-spectroscopy as well as mass-spectrometry for every exemplified compound is provided and the understanding of these methods is supported by concluding questions and exercises. Educating and entertaining, this full-color textbook turns the learning process into a real pleasure, not only for students in natural products chemistry but also experienced professionals.

Natural Products Analysis

Natural Products Analysis PDF Author: Vladimir Havlicek
Publisher: John Wiley & Sons
ISBN: 1118466616
Category : Science
Languages : en
Pages : 634

Book Description
This book highlights analytical chemistry instrumentation and practices applied to the analysis of natural products and their complex mixtures, describing techniques for isolating and characterizing natural products. • Applies analytical techniques to natural products research – an area of critical importance to drug discovery • Offers a one-stop shop for most analytical methods: x-ray diffraction, NMR analysis, mass spectrometry, and chemical genetics • Includes coverage of natural products basics and highlights antibacterial research, particularly important as efforts to combat drug resistance gain prominence • Covers instrumental techniques with enough detail for both current practitioners and beginning researchers

Handbook of Chemoinformatics Algorithms

Handbook of Chemoinformatics Algorithms PDF Author: Jean-Loup Faulon
Publisher: CRC Press
ISBN: 142008299X
Category : Computers
Languages : en
Pages : 454

Book Description
Unlike in the related area of bioinformatics, few books currently exist that document the techniques, tools, and algorithms of chemoinformatics. Bringing together worldwide experts in the field, the Handbook of Chemoinformatics Algorithms provides an overview of the most common chemoinformatics algorithms in a single source.After a historical persp