C-Glycoside Synthesis


Book Description

This book examines methods particularly well suited for either a- or b-C-glycoside formation. It helps field workers quickly select the best method for synthesizing a particular type of C-glycoside. The use of C-glycosides as synthons in natural product synthesis is also addressed.




Synthesis and Characterization of Glycosides


Book Description

This book contains the best known approaches for preparing the main types of glycosides in a short and comprehensive study. It also includes synthetic pathways of challenging glycosides known as antiviral or antineoplasic drugs, or synthetic substrates used for enzymatic detection including those used as substrates for detection of gene markers in plant biotechnology. Special attention is made on the structural characterization, providing the basic tools for the structural assignment through NMR, X-Ray and mass spectra techniques. Some of the chapters cover strategies for preparation of antiviral and antineoplasic drugs included in a drug design course.




C-Furanosides


Book Description

Carbon analogs of carbohydrates, dubbed C-glycosides, have remained an important and interesting class of mimetics, be it in natural product synthesis, for pharmacological applications, as conformational probes, or for biological studies. C-Furanosides: Synthesis and Stereochemistry provides a much-needed overview of synthetic and stereochemical principles for C-furanosides: analogs of a 5-membered ring carbohydrate glycoside (furanoside), in which the anomeric oxygen has been replaced with a carbon. While our understanding of conformational behavior and of stereoselective synthesis in 6-membered ring compounds is quite good, our ability to predict the conformation of 5-membered ring compounds, or to predict the stereochemical outcome of a given reaction, remains anecdotal. Through a comprehensive review of literature approaches to the different C-furanoside stereoisomers, as well as an interpretation of the outcome in terms of a reasonable number of stereochemical models, C-Furanosides: Synthesis and Stereochemistry enables the reader to determine the best approach to a particular C-glycoside compound, and also hopes to provide a certain level of rationalization and predictability for the synthesis of new systems. - Provides a comprehensive review of the growing literature in C-furanosides - Enables readers to choose the most convenient approach to access a defined target in natural products synthesis or pharmacology and make reasonable predictions for the stereochemical outcome in unpublished cases - Explores the various rational models for stereochemical analysis of furanoside reactivity, with a clear distinction made between physical chemical mechanisms and stereochemical models




Modern Methods in Carbohydrate Synthesis


Book Description

Modern Methods in Carbohydrate Synthesis presents in one volume a sequence of chapters leading from classical methods through to today's newest state-of -the-art technology for oligosaccharide synthesis. It places particular emphasis on the most recent breakthroughs in the field, including emerging technologies for both oligosaccharide and glycoconjugate synthesis. Chapters describing the synthesis of increasingly important glycosidic linkage analogs, as well as the oligosaccharides containing derivatives and analogs of natural sugars are included. While chemical-synthetic methods constitute the major part of the book, completing the volume is a section on the rapidly expanding and important field of enzymatic synthesis, also covering combined chemical and enzymatic synthesis. Chapters are written by leading experts in the field. Wherever possible, methods of synthesis are provided in sufficient detail to allow the reader to implement the techniques described. More than 1700 references are provided in the 21 chapters comprising the book. This volume should provide a wealth of information to a large number of synthetic organic chemists, medicinal chemists, protein chemists, biochemists, glycobiologists and cell biologists, including students in these fields.




Selective Glycosylations


Book Description

A comprehensive summary of novel approaches to the stereoselective construction of glycosidic linkages, covering modern glycosylation methods and their use and application in natural product synthesis and drug discovery. Clearly divided into five sections, the first describes recent advances in classical methodologies in carbohydrate chemistry, while the second goes on to deal with newer chemistries developed to control selectivity in glycosylation reactions. Section three is devoted to selective glycosylation reactions that rely on the use of catalytic promoters. Section four describes modern approaches for controlling regioselectivity in carbohydrate synthesis. The final section focuses on new developments in the construction of "unusual" sugars and is rounded off by a presentation of modern procedures for the construction of glycosylated natural products. By providing the latest advances in glycosylation as well as information on mechanistic aspects of the reaction, this is an invaluable reference for both specialists and beginners in this booming interdisciplinary field that includes carbohydrate chemistry, organic synthesis, catalysis, and biochemistry.




Glycoscience


Book Description

As a reflection of the quantum leap that has been made in the study of glycostructures, the first edition of this book has been completely revised and updated. The editors give up-to-date information on glycostructures, their chemistry and chemical biology in the form of a completely comprehensive survey. Glycostructures play highly diverse and crucial roles in a myriad of organisms and important systems in biology, physiology, medicine, bioengineering and technology. Only in recent years have the tools been developed to partly understand the highly complex functions and the chemistry behind them. While many facts remain undiscovered, this MRW has been contributed to by a large number of the world’s leading researchers in the field.




Biocatalysis for Practitioners


Book Description

This reference book originates from the interdisciplinary research cooperation between academia and industry. In three distinct parts, latest results from basic research on stable enzymes are explained and brought into context with possible industrial applications. Downstream processing technology as well as biocatalytic and biotechnological production processes from global players display the enormous potential of biocatalysts. Application of "extreme" reaction conditions (i.e. unconventional, such as high temperature, pressure, and pH value) - biocatalysts are normally used within a well defined process window - leads to novel synthetic effects. Both novel enzyme systems and the synthetic routes in which they can be applied are made accessible to the reader. In addition, the complementary innovative process technology under unconventional conditions is highlighted by latest examples from biotech industry.




Preparative Carbohydrate Chemistry


Book Description

Detailing commonly used methods and procedures, this reference discusses the reactions and derivative forms of carbohydrates. Preparative Carbohydrate Chemistry covers the formation, cleavage, and reactions of derivatives and illustrates bond-forming reactions of SN2 types, free radicals, chain extensions, and branching. The contents include: sugar derivatives; selected reactions in carbohydrate chemistry; chemical synthesis of oligosaccharides and O-and N -glycosyl compounds; enzymatic synthesis of sialic acid, KDO, and related deoxyulosonic acids, and of oligosaccharides; synthesis of -glycosyl compounds; carbocycles from carbohydrates; and total synthesis of sugars from non-sugars. This authoritative reference offers relevant chapters on reactions and derivative forms of carbohydrates, including commonly used methods as well as new experimental procedures. It also contains insightful chapter commentaries and succinct topic histories.




The Organic Chemistry of Sugars


Book Description

Intrigued as much by its complex nature as by its outsider status in traditional organic chemistry, the editors of The Organic Chemistry of Sugars compile a groundbreaking resource in carbohydrate chemistry that illustrates the ease at which sugars can be manipulated in a variety of organic reactions. Each chapter contains numerous examples demonst




Essentials of Glycobiology


Book Description

Sugar chains (glycans) are often attached to proteins and lipids and have multiple roles in the organization and function of all organisms. "Essentials of Glycobiology" describes their biogenesis and function and offers a useful gateway to the understanding of glycans.