Molecular Orbital Theory In Drug Research
Molecular Orbital Theory In Drug Research

Author: Lemont Kier

Publisher: Elsevier

Published: 2012-12-02

Total Pages: 273

ISBN-13: 0323158277

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Medicinal Chemistry, Volume 10: Molecular Orbital Theory in Drug Research is a 12-chapter text that emerged from a series of lectures presented to graduate students in medicinal chemistry at the University of Michigan. After dealing with the general considerations of drug phenomena and quantum theory, this book goes on exploring the various molecular orbital calculation methods and the significance of molecular orbital indices. The subsequent chapters on the applications of molecular orbital theory are organized on the basis of physical chemical phenomena concluded from the studies described to be involved in the biological activity. These chapters also look into the correlations between indices reflecting covalent bond formation and biological activity. This text further examines the charge transfer mechanisms of several drug classes. The remaining chapters are devoted to the use of molecular orbital theory in several aspects of drug research, including molecular conformation, acid-base phenomena, hydrogen bonding, and dispersion forces. This work is directed to the advanced undergraduate or graduate students in medicinal chemistry or pharmacology, as well as to the practicing scientists interested in acquiring some understanding of molecular orbital theory. Theoretical chemists seeking information on biological phenomena amenable to semiempirical molecular orbital study will find this book invaluable.

Molecular Orbital Studies in Chemical Pharmacology
Molecular Orbital Studies in Chemical Pharmacology

Author: Lemont B. Kier

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 296

ISBN-13: 364287536X

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A symposium on molecular orbital studies in chemical pharmacology was held at the Battelle Seattle Research Center of Batteile Memorial Institute in Seattle, Washington, U.S.A, on October 20-22, 1969. This volume is a col lection of the lectures presented at that symposium. The use of quantum mechanics to study the actions of molecules of biological importance is being developed by a number of scientists concerned with these phenomena. The advent of high speed computers has made possible the appl i cation of this technique to large molecules, of the kind important in living systems. One result of this expanded computational abi I ity has been the uti I i zation of molecular orbital theory by a group of scientists of diverse backgrounds. The lecturers at this symposium, all interested in molecular orbital theory, have backgrounds in pharmacology, physical chemistry, theoretical chemistry, bio chemistry and medicinal chemistry. The common denominator among these scientists has been the realization that they must search at the primary level of chemical events for explanations of biological phenomena. Since these events are governed to a large extent by the properties of the valence electrons of molecules, molecular orbital theory offers great promise in explaining and predicting biological phenomena. October, 1969 Lemont B. Kier Table of Contents v Preface BERNARD PULLMAN - Electrons in Nucleic Acids and their Cons- tu ent s JAMES R. HOYLAND - Semiempirical MO Theories: A Critique and 31 a Rev i ew of Progress ••••• . •••.

Molecular Connectivity in Chemistry and Drug Research
Molecular Connectivity in Chemistry and Drug Research

Author: Lemont Kier

Publisher: Elsevier

Published: 2012-12-02

Total Pages: 272

ISBN-13: 0323158315

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Medicinal Chemistry, Volume 14: Molecular Connectivity in Chemistry and Drug Research is a 10-chapter text that focuses on the molecular connectivity approach for quantitative evaluation of molecular structure of drugs. Molecular connectivity is a nonempirical derivation of numerical value that encode within them sufficient information to relate to many physicochemical and biological properties. This book outlines first the development of molecular connectivity approach, followed by considerable chapters on its application to evaluation of physicochemical properties of drugs. Other chapters explore the application of molecular connectivity to structure-activity studies in medicinal chemistry. The final chapters provide some reflections, challenges, and potential areas of investigation of molecular connectivity. Advanced undergraduate or graduate students in medicinal chemistry or pharmacology, practicing scientists, and theoretical chemists will find this book invaluable.

Introduction to Elementary Molecular Orbital Theory and to Semiempirical Methods
Introduction to Elementary Molecular Orbital Theory and to Semiempirical Methods

Author: G.H. Wagniere

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 114

ISBN-13: 3642930506

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These notes summarize in part lectures held regularly at the University of Zurich and, in the Summer of 1974, at the Semi nario Latinoamericano de QUimica Cuantica in Mexico. I am grateful to those who have encouraged me to publish these lec tures or have contributed to them by their suggestions. In particular, I wish to thank Professor J. Keller of the Univer sidad Nacional Autonoma in Mexico, Professor H. Labhart and Professor H. Fischer of the University of Zurich, as well as my former students Dr. J. Kuhn, Dr. W. Hug and Dr. R. Geiger. The aim of these notes is to provtde a summary and concise introduction to elementary molecular orbital theory, with an emphasis on semiempirical methods. Within the last decade the development and refinement of ab initio computations has tended to overshadow the usefulness of semiempirical methods. However, both approaches have their justification. Ab initio methods are designed for accurate predictions, at the expense of greater computational labor. The aim of semiempirical methods mainly lies in a semiquantitative classification of electronic pro perties and in the search for regularities within given classes of larger molecules. The reader is supposed to have had some previous basic instruc tion in quantum mechanics, such as is now offered in many uni versities to chemists in their third or fourth year of study. The bibliography should encourage the reader to consult other texts, in particular also selected publications in scientific journals.

Recent Advances of the Fragment Molecular Orbital Method
Recent Advances of the Fragment Molecular Orbital Method

Author: Yuji Mochizuki

Publisher: Springer Nature

Published: 2021-01-04

Total Pages: 606

ISBN-13: 9811592357

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This book covers recent advances of the fragment molecular orbital (FMO) method, consisting of 5 parts and a total of 30 chapters written by FMO experts. The FMO method is a promising way to calculate large-scale molecular systems such as proteins in a quantum mechanical framework. The highly efficient parallelism deserves being considered the principal advantage of FMO calculations. Additionally, the FMO method can be employed as an analysis tool by using the inter-fragment (pairwise) interaction energies, among others, and this feature has been utilized well in biophysical and pharmaceutical chemistry. In recent years, the methodological developments of FMO have been remarkable, and both reliability and applicability have been enhanced, in particular, for non-bio problems. The current trend of the parallel computing facility is of the many-core type, and adaptation to modern computer environments has been explored as well. In this book, a historical review of FMO and comparison to other methods are provided in Part I (two chapters) and major FMO programs (GAMESS-US, ABINIT-MP, PAICS and OpenFMO) are described in Part II (four chapters). dedicated to pharmaceutical activities (twelve chapters). A variety of new applications with methodological breakthroughs are introduced in Part IV (six chapters). Finally, computer and information science-oriented topics including massively parallel computation and machine learning are addressed in Part V (six chapters). Many color figures and illustrations are included. Readers can refer to this book in its entirety as a practical textbook of the FMO method or read only the chapters of greatest interest to them.

Molecular Orbital Calculations for Biological Systems
Molecular Orbital Calculations for Biological Systems

Author: Anne-Marie Sapse

Publisher: Oxford University Press

Published: 1998-11-12

Total Pages: 248

ISBN-13: 0195356845

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Molecular Orbital Calculations for Biological Systems is a hands-on guide to computational quantum chemistry and its applications in organic chemistry, biochemistry, and molecular biology. With improvements in software, molecular modeling techniques are now becoming widely available; they are increasingly used to complement experimental results, saving significant amounts of lab time. Common applications include pharmaceutical research and development; for example, ab initio and semi-empirical methods are playing important roles in peptide investigations and in drug design. The opening chapters provide an introduction for the non-quantum chemist to the basic quantum chemistry methods, ab initio, semi-empirical, and density functionals, as well as to one of the main families of computer programs, the Gaussian series. The second part then describes current research which applies quantum chemistry methods to such biological systems as amino acids, peptides, and anti-cancer drugs. Throughout the authors seek to encourage biochemists to discover aspects of their own research which might benefit from computational work. They also show that the methods are accessible to researchers from a wide range of mathematical backgrounds. Combining concise introductions with practical advice, this volume will be an invaluable tool for research on biological systems.

Structure-based Drug Discovery
Structure-based Drug Discovery

Author: R. E. Hubbard

Publisher: Royal Society of Chemistry

Published: 2006

Total Pages: 279

ISBN-13: 0854043519

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Structure-based drug discovery is a collection of methods that exploits the ability to determine and analyse the three dimensional structure of biological molecules. These methods have been adopted and enhanced to improve the speed and quality of discovery of new drug candidates. After an introductory overview of the principles and application of structure-based methods in drug discovery, this book then describes the essential features of the various methods. Chapters on X-ray crystallography, NMR spectroscopy, and computational chemistry and molecular modelling describe how these particular techniques have been enhanced to support rational drug discovery, with discussions on developments such as high throughput structure determination, probing protein-ligand interactions by NMR spectroscopy, virtual screening and fragment-based drug discovery. The concluding chapters complement the overview of methods by presenting case histories to demonstrate the major impact that structure-based methods have had on discovering drug molecules. Written by international experts from industry and academia, this comprehensive introduction to the methods and practice of structure-based drug discovery not only illustrates leading-edge science but also provides the scientific background for the non-expert reader. The book provides a balanced appraisal of what structure-based methods can and cannot contribute to drug discovery. It will appeal to industrial and academic researchers in pharmaceutical sciences, medicinal chemistry and chemical biology, as well as providing an insight into the field for recent graduates in the biomolecular sciences.