Download or read book Racemic Carbocyclic Nucleosides and Their Anti viral Activity written by Anne Popescu and published by . This book was released on 1995 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modern Applications of Cycloaddition Chemistry written by Paolo Quadrelli and published by Elsevier. This book was released on 2019-03-20 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book Antiviral Nucleosides written by C.K. Chu and published by Elsevier. This book was released on 2003-10-15 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: • Up-to-date review on the chemistry and biology of nucleosides • Modern synthetic methodology • Comprehensive coverage of antiviral nucleosidesThis book summarizes the recent advances in nucleosides chemistry and chemotherapy over the past 10-15 years. It covers recently discovered nucleoside antiviral agents, their therapeutic aspects and biochemistry, and also extensive reviews on their chiral synthesis.
Download or read book Nucleosides and Nucleotides as Antitumor and Antiviral Agents written by D.C. Baker and published by Springer. This book was released on 2013-11-11 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to the worldwide epidemic of acquired immunodeficiency syndrome (AIDS), the past ten years have witnessed a flurry of activity in the chemotherapy of viral diseases. Unprecedented scientific efforts have been made by scientists and clinicians to combat infections of human immunodeficiency virus (HIY), the causative agent. Looking back over the past ten years, we have made remarkable progress toward the treatment of the viral disease: isolation of HIV only two years after the identification of the disease, plus major strides in the areas of the molecular biology and virology of the retrovirus, etc. More remarkably, the discovery of the chemotherapeutic agent AZT (Retrovir) was made within two years after the isolation and identification of the virus, followed by unprecedented drug development efforts to culminate in the FDA approval of AZT in twenty-three months, which was a record-breaking time for approval of any drug for a major disease. The last six to seven years have particularly been an exciting and productive period for nucleoside chemists. Since the activity of AZI' was established in 1985, nucleoside chemists have had golden opportunities to discover additional anti-HIV nucleosipes, which are hoped to be less toxic and more effective than AZT, and the opportunity continues. As we all are aware, AZT possesses extremely potent anti-HIY activity, and no other nucleoside or non nucleoside has surpassed the potency of AZT in vitro.
Download or read book Advances in Antiviral Drug Design written by E. De Clercq and published by Elsevier. This book was released on 1996-04-23 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the series on Advances in Antiviral Drug Design is to regularly review the "state of the art" on emerging new developments in the antiviral drug research field, thereby spanning the conceptual design and chemical synthesis of new antiviral compounds, their structure-activity relationship, mechanism and target(s) of action, pharmacological behavior, antiviral activity spectrum, and therapeutic potential for clinical use. Volume 2 begins with a description of the antiviral potential of antisense oligonucleotides by J. Temsamani and S. Agrawal. According to the aims of the anitsense technology, these oligonucleotides should be targeted at specific viral antisense technology, these oligonucleotides should be targeted at specific viral mRNA sequences so that translation to the virus-specified proteins is blocked; this has been achieved for a number of oligomers, some of which are now in clinical trials for the treatment of HIV, HCMV, and human papilloma virus (HPV) infections. Then C.-S. Yuan, S. Liu, S.F. Wnuk, M.J. Robins and R.T. Borchardt assess the role of S-adenosylhornocysteine (AdoHcy) hydrolase as target for the design of antiviral agents with broad-spectrum antiviral activity. This is followed by an in-depth account on the design and synthesis of a number of first-, second- and third-generation AdoHcy hydrolase inhibitors and their mode of action at the enzyme level.V.E. Marquez provides a comprehensive description of the various carbocyclic (carba) nucleosides that have been synthesized and evaluated for antiviral activity. Although the number and diversity of the carba-nucleosides that have been found to be antivirally active (or inactive) is astonishingly high, there is no limit to further expansion of this fascinating class of molecules. For the various nucleoside analogues that have to be intracellularly phosphorylated to the 5'-triphosphate stage, to interact with their target enzyme (i.e., herpesviral DNA polymerase or retroviral revers transcriptase) the first phosphorylation step is often the rate-limiting step, and thus various strategies are envisaged by C. Perigoud, J.-L. Girardet, G. Gosselin and J.-L. Bach on how to bypass this initial phosphorylation and to deliver the nucleoside 5'-monophophate directly inside the cells.The HIV protease has been considered as a paradigm for rational drug design. The enzyme is among the best understood in terms of both structure and action, and because of its crucial role in the maturation of HIV, it has been vigorously pursued as a target for anti-HIV chemotherapy. In their comprehensive review of the multidisciplinary approach towards the development of HIV protease inhibitors A.G. Tomasselli, S. Thaisrivongs and R.L. Heinrikson highlight those protease inhibitors which have been brought forward to clinical trials.
Download or read book Biocatalysis in the Pharmaceutical and Biotechnology Industries written by Ramesh N. Patel and published by CRC Press. This book was released on 2006-09-26 with total page 878 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because enzyme-catalyzed reactions exhibit higher enantioselectivity, regioselectivity, substrate specificity, and stability, they require mild conditions to react while prompting higher reaction efficiency and product yields. Biocatalysis in the Pharmaceutical and Biotechnology Industries examines the use of catalysts to produce fine chemic
Download or read book Acyclic Carbocyclic and L Nucleosides written by L. Agrofoglio and published by Springer Science & Business Media. This book was released on 2012-09-08 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Current Pharmaceutical Design written by and published by . This book was released on 1997-04 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Virus Research written by and published by Academic Press. This book was released on 1993-02-16 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Virus Research
Download or read book Enzymatic and Chemical Synthesis of Nucleic Acid Derivatives written by Jesús Fernández Lucas and published by John Wiley & Sons. This book was released on 2019-04-29 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review of innovative tools for creative nucleic acid chemists that open the door to novel probes and therapeutic agents Nucleic acids continue to gain importance as novel diagnostic and therapeutic agents. With contributions from noted scientists and scholars, Enzymatic and Chemical Synthesis of Nucleic Acid Derivatives is a practical reference that includes a wide range of approaches for the synthesis of designer nucleic acids and their derivatives. The book covers enzymatic (including chemo-enzymatic) methods, with a focus on the synthesis and incorporation of modified nucleosides. The authors also offer a review of innovative approaches for the non-enzymatic chemical synthesis of nucleic acids and their analogs and derivatives, highlighting especially challenging species. The book offers a concise review of the methods that prepare novel and heavily modified polynucleotides in sufficient amount and purity for most clinical and research applications. This important book: -Presents a timely and topical guide to the synthesis of designer nucleic acids and their derivatives -Addresses the growing market for nucleotide-derived pharmaceuticals used as anti-infectives and chemotherapeutic agents, as well as fungicides and other agrochemicals. -Covers novel methods and the most recent trends in the field -Contains contributions from an international panel of noted scientistics Written for biochemists, medicinal chemists, natural products chemists, organic chemists, and biotechnologists, Enzymatic and Chemical Synthesis of Nucleic Acid Derivatives is a practice-oriented guide that reviews innovative methods for the enzymatic as well as non-enzymatic synthesis of nucleic acid species.
Download or read book Modified Nucleosides written by Piet Herdewijn and published by John Wiley & Sons. This book was released on 2008-09-08 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Secondary Metabolite Biosynthesis and Metabolism written by Richard J. Petroski and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book was developed from the proceedings of the American Chemical Society, Division of Agricultural & Food Chemistry, subdivision of Natural Products Symposium "Biosynthesis and Metabolism of Secondary Natural Products" held in Atlanta, Georgia, April 1991. The objective of the conference was to bring together people from apparently diverse fields, ranging from biotechnology, metabolism, mechanistic organic chemistry, enzymology, fermentation, and biosynthesis, but who share a common interest in either the biosynthesis or the metabolism of natural products. It is our intention to help bridge the gap between the fields of mechanistic bio-organic chemistry and biotechnology. Our thanks go to Dr. Henry Yokoyama, co-organizer of the symposium, the authors who so kindly contributed chapters, the conference participants, and to those who assisted in the peer review process. We also thank the financial supporters of the symposium: ACS/AGFD, NIH General Medical Sciences, and the agricultural, pharmaceutical, biotechnology, and chromatography companies. A full list of the supporting corporations and institutions is given on the following page. Pharma-Tech and P.C., Inc. are manufacturers of instrumentation for high-speed countercurrent chromatography. We thank the Agricultural Research Service and the U. S. Department of Agriculture for granting me permission to co-organize the conference and for us to complete the book. Richard J. Petroski Susan P. McCormick USDA, ARS, National Center for Agricultural Utilization Research Peoria, IL 61604 June 10, 1992 vii CONTENTS ANTIBIOTICS Polyketide Synthetases: Enzyme Complexes and Multifunctional Proteins Directing the Biosynthesis of Bacterial Metabolites from Fatty Acids. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 . . . . . . . . . . .
Download or read book Medicinal Chemistry of Nucleic Acids written by Lihe Zhang and published by John Wiley & Sons. This book was released on 2011-08-10 with total page 477 pages. Available in PDF, EPUB and Kindle. Book excerpt: Complete, up-to-date coverage of the broad area of nucleic acid chemistry and biology Assembling contributions from a collection of authors with expertise in all areas of nucleic acids, medicinal chemistry, and therapeutic applications, Medicinal Chemistry of Nucleic Acids presents a thorough overview of nucleic acid chemistry—a rapidly evolving and highly challenging discipline directly responsible for the development of antiviral and antitumor drugs. This reliable resource delves into a multitude of subject areas involving the study of nucleic acids—such as the new advances in genome sequencing, and the processes for creating RNA interference (RNAi) based drugs—to assist pharmaceutical researchers in removing roadblocks that hinder their ability to predict drug efficacy. Offering the latest cutting-edge science in this growing field, Medicinal Chemistry of Nucleic Acids includes: In-depth coverage of the development and application of modified nucleosides and nucleotides in medicinal chemistry A close look at a large range of current topics on nucleic acid chemistry and biology Essential information on the use of nucleic acid drugs to treat diseases like cancer A thorough exploration of siRNA for RNAi and the regulation of microRNA, non-coding RNA (ncRNA), a newly developing and exciting research area Thorough in its approach and promising in its message, Medicinal Chemistry of Nucleic Acids probes the new domains of pharmaceutical research—and exposes readers to a wealth of new drug discovery opportunities emerging in the dynamic field of nucleic acid chemistry.
Download or read book Cumulated Index Medicus written by and published by . This book was released on 1990 with total page 1254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Carbohydrate Chemistry written by R. J. Ferrier and published by Royal Society of Chemistry. This book was released on 1991 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation A review of the literature published in 1989 on mono- and oligosaccharide chemistry--illustrating continuing general advances on all fronts with strong emphasis on the development of synthetic methods and their application to problems with origins in biology. Many examples of this are given in the sections on oligosaccharides, nucleosides and antibiotics, while the role of carbohydrate chemistry in general organic chemistry is well illustrated by the many complex conversions of sugar derivatives into enantiomerically pure natural substances of a non-carbohydrate nature. Once again, however, biological issues--in this case medicinal--are commonly the driving forces behind the work. Acidic paper. Annotation(c) 2003 Book News, Inc., Portland, OR (booknews.com).
Download or read book Chemical Synthesis of Nucleoside Analogues written by Pedro Merino and published by John Wiley & Sons. This book was released on 2013-02-12 with total page 859 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Nucleic Acids in Chemistry and Biology written by G Michael Blackburn and published by Royal Society of Chemistry. This book was released on 2015-11-09 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: The structure, function and reactions of nucleic acids are central to molecular biology and are crucial for the understanding of complex biological processes involved. Revised and updated Nucleic Acids in Chemistry and Biology 3rd Edition discusses in detail, both the chemistry and biology of nucleic acids and brings RNA into parity with DNA. Written by leading experts, with extensive teaching experience, this new edition provides some updated and expanded coverage of nucleic acid chemistry, reactions and interactions with proteins and drugs. A brief history of the discovery of nucleic acids is followed by a molecularly based introduction to the structure and biological roles of DNA and RNA. Key chapters are devoted to the chemical synthesis of nucleosides and nucleotides, oligonucleotides and their analogues and to analytical techniques applied to nucleic acids. The text is supported by an extensive list of references, making it a definitive reference source. This authoritative book presents topics in an integrated manner and readable style. It is ideal for graduate and undergraduates students of chemistry and biochemistry, as well as new researchers to the field.
