Acyclic, Carbocyclic and L-Nucleosides

Acyclic, Carbocyclic and L-Nucleosides PDF Author: L. Agrofoglio
Publisher: Springer Science & Business Media
ISBN: 9400708165
Category : Science
Languages : en
Pages : 391

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Book Description
Interest in chemical entities capable of blocking or modifying cell metabolism ultimately goes back to the discovery of the structure of DNA in the 1950s. Understanding of the biochemical processes involved in cell metabolism rapidly led to the idea that compounds could be designed which might interfere with these processes, and thus could be used in the treatment of the diseases caused by viral infection. Since then, several classes of drugs have been discovered which depend for their effect on modification of the proper functioning of nucleic acids and, with the introduction of acyclovir for the treatment of Herpes infections, nucleoside analogues have become the cornerstone of antiviral chemotherapy. The success of the early nucleoside agents, the toxicity and metabolic instability of many nucleoside analogues, and the effects of viral pathogens on public health are driving the design, synthesis and evaluation of new nucleoside analogues, with much attention turning to nucleosides containing `non natural' sugar analogues. This book focuses on the development of these agents, and draws together all the available material in an easily consulted form, which at the same time guides the reader into the research literature on the subject. Written primarily for the medicinal chemist, coverage includes both synthetic strategies and outline guidance on the main trends in biological activity. Particular attention is drawn to the comparison of synthetic routes to compounds with their natural analogues. Finally, the important antiviral activities of the compounds are treated, including anti-retrovirus, anti-hepadnavirus and anti-herpes virus properties. Written mainly for medicinal chemists in the pharmaceutical industry and synthetic organic chemists in academe, this book will also be attractive to researchers in institutions focusing on cellular metabolism. Advanced students of organic chemistry will find the clear discussion of the synthetic strategies adopted in the development of these compounds a useful introduction to this exciting and challenging area.

Acyclic, Carbocyclic and L-Nucleosides

Acyclic, Carbocyclic and L-Nucleosides PDF Author: L. Agrofoglio
Publisher: Springer Science & Business Media
ISBN: 9400708165
Category : Science
Languages : en
Pages : 391

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Book Description
Interest in chemical entities capable of blocking or modifying cell metabolism ultimately goes back to the discovery of the structure of DNA in the 1950s. Understanding of the biochemical processes involved in cell metabolism rapidly led to the idea that compounds could be designed which might interfere with these processes, and thus could be used in the treatment of the diseases caused by viral infection. Since then, several classes of drugs have been discovered which depend for their effect on modification of the proper functioning of nucleic acids and, with the introduction of acyclovir for the treatment of Herpes infections, nucleoside analogues have become the cornerstone of antiviral chemotherapy. The success of the early nucleoside agents, the toxicity and metabolic instability of many nucleoside analogues, and the effects of viral pathogens on public health are driving the design, synthesis and evaluation of new nucleoside analogues, with much attention turning to nucleosides containing `non natural' sugar analogues. This book focuses on the development of these agents, and draws together all the available material in an easily consulted form, which at the same time guides the reader into the research literature on the subject. Written primarily for the medicinal chemist, coverage includes both synthetic strategies and outline guidance on the main trends in biological activity. Particular attention is drawn to the comparison of synthetic routes to compounds with their natural analogues. Finally, the important antiviral activities of the compounds are treated, including anti-retrovirus, anti-hepadnavirus and anti-herpes virus properties. Written mainly for medicinal chemists in the pharmaceutical industry and synthetic organic chemists in academe, this book will also be attractive to researchers in institutions focusing on cellular metabolism. Advanced students of organic chemistry will find the clear discussion of the synthetic strategies adopted in the development of these compounds a useful introduction to this exciting and challenging area.

Modified Nucleosides

Modified Nucleosides PDF Author: Piet Herdewijn
Publisher: John Wiley & Sons
ISBN: 3527623124
Category : Science
Languages : en
Pages : 684

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Book Description
Edited by one of the main driving forces behind the field's momentous rise in recent years, this one-stop reference is the first comprehensive resource to integrate recent advances. The first part addresses biochemical aspects and applications, the second and third parts are devoted to compounds with therapeutic potential, with the third part focusing on newly introduced anticancer nucleoside drugs. Essential reading for every scientist working in this area.

Chemical Synthesis of Nucleoside Analogues

Chemical Synthesis of Nucleoside Analogues PDF Author: Pedro Merino
Publisher: John Wiley & Sons
ISBN: 1118498100
Category : Science
Languages : en
Pages : 859

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Book Description
Compiles current tested and proven approaches to synthesize novel nucleoside analogues Featuring contributions from leading synthetic chemists from around the world, this book brings together and describes tested and proven approaches for the chemical synthesis of common families of nucleoside analogues. Readers will learn to create new nucleoside analogues with desired therapeutic properties by using a variety of methods to chemically modify natural nucleosides, including: Changes to the heterocyclic base Modification of substituents at the sugar ring Replacement of the furanose ring by a different carbo- or heterocyclic ring Introduction of conformational restrictions Synthesis of enantiomers Preparation of hydrolitically stable C-nucleosides Chemical Synthesis of Nucleoside Analogues covers all the major classes of nucleosides, including pronucleotides, C-nucleosides, carbanucleosides, and PNA monomers which have shown great promise as starting points for the synthesis of nucleoside analogues. The book also includes experimental procedures for key reactions related to the synthesis of nucleoside analogues, providing a valuable tool for the preparation of a number of different compounds. Throughout the book, chemical schemes and figures help readers better understand the chemical structures of nucleoside analogues and the methods used to synthesize them. Extensive references serve as a gateway to the growing body of original research studies and reviews in the field. Synthetically modified nucleosides have proven their value as therapeutic drugs, in particular as antiviral and antitumor agents. However, many of these nucleoside analogues have undesirable side effects. With Chemical Synthesis of Nucleoside Analogues as their guide, researchers have a new tool for synthesizing a new generation of nucleoside analogues that can be used as therapeutic drugs with fewer unwanted side effects.

Palladium-Catalyzed Modification of Nucleosides, Nucleotides and Oligonucleotides

Palladium-Catalyzed Modification of Nucleosides, Nucleotides and Oligonucleotides PDF Author: Anant R. Kapdi
Publisher: Elsevier
ISBN: 012811293X
Category : Science
Languages : en
Pages : 360

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Book Description
Palladium-Catalyzed Modification of Nucleosides, Nucleotides and Oligonucleotides describes the procedures and protocols related to the modification of nucleosides, nucleotides and oligonucleotides via Pd-mediated cross-coupling processes. The book highlights the growing area of nucleic acid modification and how Pd-mediated coupling reactions can assist this development. Users will find key synthetic protocols for these reactions in this latest volume in the Latest Trends in Palladium Chemistry series. As most of the research in the field of antiviral agents has centered on the use of modified nucleosides that have exhibited promising activity, this book provides an up-to-date reference for both professionals in industry and other interested parties. - Provides synthetic routes for useful nucleoside molecules, information otherwise found only through time-consuming literature searches - Covers metal-mediated and metal-catalyzed cross coupling processes of nucleosides and related compounds - Includes Suzuki-Miyaura, Stille and Sonogashira reactions, as well as C-H bond functionalization - Highlights the growing area of nucleic acid modification and how Pd-mediated coupling reactions can assist

Modern Applications of Cycloaddition Chemistry

Modern Applications of Cycloaddition Chemistry PDF Author: Paolo Quadrelli
Publisher: Elsevier
ISBN: 0128152745
Category : Science
Languages : en
Pages : 354

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Book Description
Modern Applications of Cycloaddition Chemistry examines this area of organic chemistry, with special attention paid to cycloadditions in synthetic and mechanistic applications in modern organic chemistry. While many books dedicated to cycloaddition reactions deal with the synthesis of heterocycles, general applications, specific applications in natural product synthesis, and the use of a class of organic compounds, this work sheds new light on pericyclic reactions by demonstrating how these valuable tools elegantly solve synthetic and mechanistic problems. The work examines how pericyclic reactions have been extensively applied to different chemistry areas, such as chemical biology, biological processes, catalyzed cycloaddition reactions, and more. This work will be useful for organic chemists who deal with organic chemistry, medicinal chemistry, agrochemistry and material chemistry. - Provides details on the synthesis of antiviral and anticancer compounds, marking the key role of unconventional catalyzed cycloaddition reactions for preparing new derivatives in a unique reaction pathway that is scalable in industrial processes - Contains the most up-to-date review of the use of pericyclic reactions in drug delivery - Includes the enzyme-catalyzed processes involving cycloaddition reactions for different targets, demonstrating that cycloaddition is more common in nature than expected - Features new applications for cycloadditions in material chemistry and provides a general view of the most recent results in the area

Carbohydrate Chemistry

Carbohydrate Chemistry PDF Author: Amelia Pilar Rauter
Publisher: Royal Society of Chemistry
ISBN: 1847558801
Category : Reference
Languages : en
Pages : 370

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Book Description
Carbohydrate Chemistry provides review coverage of all publications relevant to the chemistry of monosaccharides and oligosaccharides in a given year. The amount of research in this field appearing in the organic chemical literature is increasing because of the enhanced importance of the subject, especially in areas of medicinal chemistry and biology. In no part of the field is this more apparent than in the synthesis of oligosaccharides required by scientists working in glycobiology. Clycomedicinal chemistry and its reliance on carbohydrate synthesis is now very well established, for example, by the preparation of specific carbohydrate- based antigens, especially cancer-specific oligosaccharides and glycoconjugates. Coverage of topics such as nucleosides, amino-sugars, alditols and cyclitols also covers much research of relevance to biological and medicinal chemistry. Each volume of the series brings together references to all published work in given areas of the subject and serves as a comprehensive database for the active research chemist Specialist Periodical Reports provide systematic and detailed review coverage in major areas of chemical research. Compiled by teams of leading authorities in the relevant subject areas, the series creates a unique service for the active research chemist, with regular, in-depth accounts of progress in particular fields of chemistry. Subject coverage within different volumes of a given title is similar and publication is on an annual or biennial basis.

Synthesis and Characterization of Glycosides

Synthesis and Characterization of Glycosides PDF Author: Marco Brito-Arias
Publisher: Springer Nature
ISBN: 3030978540
Category : Science
Languages : en
Pages : 543

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Book Description
This third edition is a comprehensive and extended study about the best known approaches for preparing the main types of glycosides, covering the classic and more recent glycosylation reactions used for preparing simple and challenging glycosides currently used as potent antiviral and antineoplastic drugs, or fluorogenic substrates used for enzymatic detection in cell biology. Besides, this new edition provides more examples of the glycosidic methodologies followed for preparing complex glycoconjugates such as glycoproteins and glycosphingolipids and gangliosides used as adjuvants or as synthetic vaccines candidates. Also, additional mechanistic evidence is presented for better understanding of the glycosylation reaction, trying to identify the variables mainly depending on protecting and leaving groups, as well as catalyst and reaction condition which altogether directs the anomeric stereo control. A chapter on the glycoside hydrolysis is included in view of the increasing interest in the use of biomass as a natural and renewable source for obtaining important intermediates or products used in food or valuable materials. The author includes information in the characterization of glycosides section with the aim of giving additional tools for the structural assignment through NMR, X-Ray and mass spectra techniques.

Solid-Phase Organic Synthesis

Solid-Phase Organic Synthesis PDF Author: Patrick H. Toy
Publisher: John Wiley & Sons
ISBN: 1118141636
Category : Science
Languages : en
Pages : 560

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Book Description
Presents both the fundamental concepts and the most recent applications in solid-phase organic synthesis With its emphasis on basic concepts, Solid-Phase Organic Synthesis guides readers through all the steps needed to design and perform successful solid-phase organic syntheses. The authors focus on the fundamentals of heterogeneous supports in the synthesis of organic molecules, explaining the use of a solid material to facilitate organic synthesis. This comprehensive text not only presents the fundamentals, but also reviews the most recent research findings and applications, offering readers everything needed to conduct their own state-of-the-art science experiments. Featuring chapters written by leading researchers in the field, Solid-Phase Organic Synthesis is divided into two parts: Part One, Concepts and Strategies, discusses the linker groups used to attach the synthesis substrate to the solid support, colorimetric tests to identify the presence of functional groups, combinatorial synthesis, and diversity-oriented synthesis. Readers will discover how solid-phase synthesis is currently used to facilitate the discovery of new molecular functionality. The final chapter discusses how using a support can change or increase reaction selectivity. Part Two, Applications, presents examples of the solid-phase synthesis of various classes of organic molecules. Chapters explore general asymmetric synthesis on a support, strategies for heterocyclic synthesis, and synthesis of radioactive organic molecules, dyes, dendrimers, and oligosaccharides. Each chapter ends with a set of conclusions that underscore the key concepts and methods. References in each chapter enable readers to investigate any topic in greater depth. With its presentation of basic concepts as well as recent findings and applications, Solid-Phase Organic Synthesis is the ideal starting point for students and researchers in organic, medicinal, and combinatorial chemistry who want to take full advantage of current solid-phase synthesis techniques.

Advances in Antiviral Drug Design

Advances in Antiviral Drug Design PDF Author: E. De Clercq
Publisher: Elsevier
ISBN: 0080548245
Category : Medical
Languages : en
Pages : 265

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Book Description
Regularly reviewing the "state-of-the-art" developments in the antiviral drug research field, this latest volume spans the conceptual design and chemical synthesis of new antiviral compounds. It discusses their structure-activity relationship, mechanism and targets of action, pharmacological behavior, antiviral activity spectrum, and therapeutic potential for clinical use.

Nucleoside Mimetics

Nucleoside Mimetics PDF Author: Claire Simons
Publisher: CRC Press
ISBN: 9789056993245
Category : Medical
Languages : en
Pages : 206

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Book Description
Nucleosides exhibit a broad spectrum of biological activity that generally results from their ability to inhibit specific enzymes. This activity has led to their use in the development of various pharmaceutical agents used in the treatment of cancers and to combat harmful viruses, bacteria and parasites. Nucleoside Mimetics provides an introduction to the chemistry of nucleoside mimetics, which combines carbohydrate, heterocyclic and asymmetric synthesis. The book gives a comprehensive introduction to nucleosides and coverage of the various classes. The aim of Nucleoside Mimetics is to provide the reader with a useful insight into the diversity of nucleosides, the range of elegant chemistry involved and the continuing importance of nucleosides as both therapeutic agents and as probes for studying biochemical processes.