Methodological Innovations in Polyketide Synthesis and Their Application Toward the Scalable Synthesis of Anti-Tumor Agent Spongistatin 1 PDF Download
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Author: Samuel Kaye Reznik
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ISBN:
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Languages : en
Pages :
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Book Description
This thesis describes the efforts of the Leighton laboratory to develop a scalable synthetic route to access anti-tumor agent spongistatin 1, or analogs thereof. In an effort to achieve this goal, several new chemical reaction platforms were established. Though these novel chemical transformations were developed specifically for use in the total synthesis of spongistatin 1, their potential application to general polyketide synthesis has been demonstrated. These methodological innovations have allowed our laboratory to take tremendous strides toward the longterm goal of helping to bring a potent chemotherapeutic agent to the global market.
Author: Samuel Kaye Reznik
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
This thesis describes the efforts of the Leighton laboratory to develop a scalable synthetic route to access anti-tumor agent spongistatin 1, or analogs thereof. In an effort to achieve this goal, several new chemical reaction platforms were established. Though these novel chemical transformations were developed specifically for use in the total synthesis of spongistatin 1, their potential application to general polyketide synthesis has been demonstrated. These methodological innovations have allowed our laboratory to take tremendous strides toward the longterm goal of helping to bring a potent chemotherapeutic agent to the global market.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Work on the synthesis of an analog of spongistatin 1, specifically on the completion of the northern ABCD hemisphere, will also be discussed.
Author: Tsutomu Ishikawa
Publisher: John Wiley & Sons
ISBN: 9780470740866
Category : Science
Languages : en
Pages : 336
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Book Description
Guanidines, amidines and phosphazenes have been attracting attention in organic synthesis due to their potential functionality resulting from their extremely strong basicity. They are also promising catalysts because of their potential for easy molecular modification, possible recyclability, and reduced or zero toxicity. Importantly, these molecules can be derived as natural products – valuable as scientists move towards “sustainable chemistry”, where reagents and catalysts are derived from biomaterial sources. Superbases for Organic Synthesis is an essential guide to these important molecules for preparative organic synthesis. Topics covered include the following aspects: an introduction to organosuperbases physicochemical properties of organic superbases amidines and guanidines in organic synthesis phosphazene: preparation, reaction and catalytic role polymer-supported organosuperbases application of organosuperbases to total synthesis related organocatalysts: proton sponges and urea derivatives amidines and guanidines in natural products and medicines Superbases for Organic Synthesis is a comprehensive, authoritative and up-to-date guide to these important reagents for organic chemists, drug discovery researchers and those interested in the chemistry of natural products.
Author: J. Mulzer
Publisher: Springer Science & Business Media
ISBN: 3662040425
Category : Medical
Languages : en
Pages : 363
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Book Description
Natural Products have been important sources of useful drugs from prehistoric times to the present. This book gives an overview about this field and provides important recent contributions to the discovery of new drugs generated by research on natural products. Total synthesis of natural products with interesting biological activities is paving the way for the preparation of new and improved analogs. The methods of combinatorial chemistry permit the selection of the best drug from a large number of candidates. Beyond synthesis and evaluation of organic molecules a number of new bioorganic methods are coming to the fore and will be discucced in this isue of the ERnst schering Research Foundation workshop proceedings.
Author: Satya D. Sarker
Publisher: Springer Science & Business Media
ISBN: 1592599559
Category : Science
Languages : en
Pages : 518
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Book Description
The term “natural products” spans an extremely large and diverse range of chemical compounds derived and isolated from biological sources. Our interest in natural products can be traced back thousands of years for their usefulness to humankind, and this continues to the present day. Compounds and extracts derived from the biosphere have found uses in medicine, agriculture, cosmetics, and food in ancient and modern societies around the world. Therefore, the ability to access natural products, understand their usefulness, and derive applications has been a major driving force in the field of natural product research. The first edition of Natural Products Isolation provided readers for the first time with some practical guidance in the process of extraction and isolation of natural products and was the result of Richard Cannell’s unique vision and tireless efforts. Unfortunately, Richard Cannell died in 1999 soon after completing the first edition. We are indebted to him and hope this new edition pays adequate tribute to his excellent work. The first edition laid down the “ground rules” and established the techniques available at the time. Since its publication in 1998, there have been significant developments in some areas in natural product isolation. To capture these developments, publication of a second edition is long overdue, and we believe it brings the work up to date while still covering many basic techniques known to save time and effort, and capable of results equivalent to those from more recent and expensive techniques.
Author: Carlo Scolastico
Publisher: Springer Science & Business Media
ISBN: 1461548012
Category : Science
Languages : en
Pages : 367
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Book Description
The last two decades have seen a rapid growth in the synthetic processing of both simple and complex molecules, aimed at meeting the needs of society in all aspects of life. Many efforts have been devoted to the development of new biologically active compounds, new materials with innovative properties such as bio-compatibility, new catalysts that allow highly selective transformations, and technologies that facilitate the synthetic pro cesses. This book is a compendium of recent progress in all these aspects of synthetic chemistry. It collects the lectures of the XII International Conference on Organic Synthesis, held in Venice from June 28 to July 2, 1998, in which the present state of art of this discipline has been reported. The topics covered include: combinatorial chemistry, new synthetic methods, stereo selective synthesis, metal-mediated synthesis, and target oriented synthesis. The book collects the contributions, in the mentioned topics, of 43 scientists from 19 different countries. The contributions presented in the Conference as plenary lectures are reported in the first section of the book. Particular attention has been dedicated to combinatorial chemistry, a new and promising methodology for the synthesis of libraries of pharmaco logically interesting compounds in order to allow the automatic pharmacological screening of thousands of compounds. The Conference has dedicated to combinatorial chemistry a mini-symposium in which scientists from academy and companies have described the current trends of this very new technology.
Author: Mario Waser
Publisher: Springer
ISBN: 9783709119556
Category : Science
Languages : en
Pages : 0
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Book Description
This book provides the reader with an illustrative overview concerning successful and widely used applications of organocatalysis in the field of natural product synthesis. The main focus will be on organocatalytic key-steps for each (multi-step) synthesis described, whereas other often particularly innovative transformations will be omitted, as this would be beyond the scope of this volume.
Author: Shang-Cheng Hung
Publisher: John Wiley & Sons
ISBN: 1118299841
Category : Science
Languages : en
Pages : 574
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Book Description
This book is a comprehensive and concise review on principles, strategies, and crucial advances in glycochemistry. It focuses on synthesis and practical applications and emphasizes state-of-the-art approaches to the assembly and design of sugars. • Provides detailed discussion on specific topics like oligosaccharide assembly and design of sugars, techniques in glycoconjugate preparation, multivalency, and carbohydrate-based drug design • Uses notable examples, like solution-based one-pot methods and automated methods for sugar assembly, to illustrate important concepts and advances in a rapidly emerging field • Discusses practical applications of carbohydrates, like medicine, therapeutics, drug and vaccine development
Author: Evgeny N. Vulfson
Publisher: Springer Science & Business Media
ISBN: 1592591124
Category : Technology & Engineering
Languages : en
Pages : 677
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Book Description
Enzymatic catalysis has gained considerable attention in recent years as an efficient tool in the preparation of natural products, pharmaceuticals, fine chemicals, and food ingredients. The high selectivity and mild reaction con- tions associated with enzymatic transformations have made this approach an attractive alternative in the synthesis of complex bioactive compounds, which are often difficult to obtain by standard chemical routes. However, the maj- ity of organic compounds are not very soluble in water, which was traditi- ally perceived as the only suitable reaction medium for the application of biocatalysts. The realization that most enzymes can function perfectly well under nearly anhydrous conditions and, in addition, display a number of useful properties, e. g. , highly enhanced stability and different selectivity, has d- matically widened the scope of their application to the organic synthesis. Another great attraction of using organic solvents rather than water as a reaction solvent is the ability to perform synthetic transformations with re- tively inexpensive hydrolytic enzymes. It is worth reminding the reader that in vivo, the synthetic and hydrolytic pathways are catalyzed by different enzymes. However, elimination of water from the reaction mixture enables the “reversal” of hydrolytic enzymes and thus avoids the use of the expensive cofactors or activated substrates that are required for their synthetic count- parts.
Author: Kumar Gadamasetti
Publisher: CRC Press
ISBN: 9780824719814
Category : Medical
Languages : en
Pages : 514
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Book Description
Providing guidance for chemists and other scientists entering pharmaceutical discovery and development, this up-to-the-minute reference presents contributions from an international group of nearly 50 renowned researchers—offering a solid grounding in synthetic and physical organic chemistry, and clarifying the roles of various specialties in the development of new drugs. Featuring over 1000 references, tables, and illustrations, Process Chemistry in the Pharmaceutical Industry is sure to find its way to the bookshelves of organic, physical, analytical, process, and medicinal chemists and biochemists; pharmacists; and upper-level undergraduate and graduate students in these disciplines.
