Carbohydrate-spiro-heterocycles

Carbohydrate-spiro-heterocycles PDF Author: László Somsák
Publisher: Springer Nature
ISBN: 3030319423
Category : Science
Languages : en
Pages : 299

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Book Description
This volume is devoted to compounds in which the spiro centre is part of a pyranoid or furanoid or an iminosugar ring. The chapters contributed deal with methodological peculiarities of syntheses of natural and artificial sugar derived spirocycles as well as their biological applications and other utilities including marketed drugs. Carbohydrates are ubiquitous molecules in nature and participate in a vast number of biological interactions. Especially their conjugates with practically all kinds of primary and secondary metabolic small molecules (and also biomacromolecules) representing valuable tools for glycobiology research and also lead compounds for drug discovery. While monosaccharides per se appear as heterocycles, their natural conjugates frequently exhibit spiro(hetero)cyclic derivatives, in many cases of high therapeutical relevance. As a consequence, the field of carbohydrate-spiro-heterocycles attracts intense interest from both chemical and biomedical aspects therefore this volume will be of interest for synthetic and medicinal chemists and (glyco)biologists, as well as researchers involved in various biomedical fields.

Carbohydrate-spiro-heterocycles

Carbohydrate-spiro-heterocycles PDF Author: László Somsák
Publisher: Springer Nature
ISBN: 3030319423
Category : Science
Languages : en
Pages : 299

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Book Description
This volume is devoted to compounds in which the spiro centre is part of a pyranoid or furanoid or an iminosugar ring. The chapters contributed deal with methodological peculiarities of syntheses of natural and artificial sugar derived spirocycles as well as their biological applications and other utilities including marketed drugs. Carbohydrates are ubiquitous molecules in nature and participate in a vast number of biological interactions. Especially their conjugates with practically all kinds of primary and secondary metabolic small molecules (and also biomacromolecules) representing valuable tools for glycobiology research and also lead compounds for drug discovery. While monosaccharides per se appear as heterocycles, their natural conjugates frequently exhibit spiro(hetero)cyclic derivatives, in many cases of high therapeutical relevance. As a consequence, the field of carbohydrate-spiro-heterocycles attracts intense interest from both chemical and biomedical aspects therefore this volume will be of interest for synthetic and medicinal chemists and (glyco)biologists, as well as researchers involved in various biomedical fields.

Advances in Heterocyclic Chemistry

Advances in Heterocyclic Chemistry PDF Author: Eric F.V. Scriven
Publisher: Academic Press
ISBN: 032390128X
Category : Science
Languages : en
Pages : 332

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Book Description
Advances in Heterocyclic Chemistry, Volume 136 is the latest release in this definitive series in the field of heterocyclic chemistry, one of great importance to organic chemists, polymer chemists, and many biological scientists. Because biology and organic chemistry increasingly intersect, the associated nomenclature is used more frequently in explanations. Written by established authorities in the field from around the world, this comprehensive review combines descriptive synthetic chemistry and mechanistic insight to yield an understanding of how chemistry drives the preparation and useful properties of heterocyclic compounds. - Considered the definitive serial in the field of heterocyclic chemistry - Serves as the go-to reference for organic chemists, polymer chemists and many biological scientists - Provides the latest comprehensive reviews written by established authorities in the field - Combines descriptive synthetic chemistry and mechanistic insights to enhance understanding on how chemistry drives the preparation and useful properties of heterocyclic compounds

Amino Acids: Insights and Roles in Heterocyclic Chemistry

Amino Acids: Insights and Roles in Heterocyclic Chemistry PDF Author: Zerong Wang
Publisher: CRC Press
ISBN: 1000738922
Category : Science
Languages : en
Pages : 420

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Book Description
This is the second volume of a first-of-its-kind four-volume book set that provides readers with up-to-date information on α-amino acids, the potential challenges in working with α-amino acids, the protecting groups for the carboxyl, amino and side chain groups of the amino acids, and the most popular heterocyclic compounds that are originating from alpha-amino acids. These heterocyclic compounds include hydantoins, thiohydantoins (including 2-thiohydantoins, 4-thiohydantoins, 2,4-dithiohydantoins), 2,5-diketopiperazines, N-carboxyanhydrides, N-thiocarboxyanhydrides, sydnones, sydnonimines, azlactones, pseudoazlactones, and oxazolidin-5-ones. This is the first resource to comprehensively collect all the heterocycles that can be directly prepared from α-amino acids. In addition, almost all kinds of synthetic methods for a particular type of heterocycles from alpha-amino acids are included, along with the detailed mechanistic discussions and experimental procedures. In Volume 2: Hydantoins, Thiohydantoins, and 2,5-Diketopiperazines compiles the three IUPAC accepted nomenclature systems for heterocyclic compounds, which will be very useful for readers working in the heterocyclic chemistry field for giving synthesized molecules their correct names. In addition, three groups of heterocyclic compounds, i.e., hydantoins, thiohydantoins (including 2-thiohydantoin, 4-thiohydantoin and 2,4-dithiohydantoin), and 2,5-diketopiperazines, have been organized with updated literature information. Particularly, all three groups of heterocyclic compounds have demonstrated many important biological activities, particularly anticancer and antibacterial activities. On the other hand, these three groups of heterocycles can be applied as substrates to make other chemical derivatives, particularly novel unnatural amino acids. All their reactivities have been compiled and updated. The other volumes include: Volume 1: Protecting Groups Volume 3: N-Carboxyanhydrides, N-Thiocarboxyanhydrides, and Sydnones Volume 4: Azlactones and Oxazolidin-5-ones All together, this unique 4-volume set thoroughly covers the two types of heterocyclic compounds that are originated from alpha-amino acids, providing carefully compiled updated information with detailed examples. The author has shared many thoughtful insights based on his strong background in physical organic chemistry. The volumes will be highly valuable for graduate students and senior students, as well as for professors and researchers working in the field of medicinal and pharmaceutical chemistry, organic chemistry, organic synthesis, heterocycles, and proteins and peptides.

Heterocycles from Carbohydrate Precursors

Heterocycles from Carbohydrate Precursors PDF Author: El Sayed H. El Ashry
Publisher: Springer Science & Business Media
ISBN: 3540729577
Category : Science
Languages : en
Pages : 363

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Book Description
This book is a volume in the series Topics in Heterocyclic Chemistry.Itc- ers the key methods used for designing synthetic approaches to heterocycles from carbohydrates and the value and scope of these methods. Carbohydrates are widely distributed in nature and constitute the largest part of renewable biomasses. Moreover, many carbohydrates and their derivatives are comm- cially available at relatively cheap prices. Consequently their utilization is highly encouraged and economically they are of great signi?cance. Moreover, carbohydrates are highly functionalized compounds that can be readily deri- tized and/or cyclized to provide heterocyclic compounds. This book provides a modern account and an up-to-date description of the advancement in the synthesis of diverse heterocycles from carbohydrates. Carbohydrates can be considered as a source of chiral centers in addition to the variable modi?cation thereof. Herein the elaboration of the carbohydrate molecules for providing different heterocycles is the main objective and team efforts from leaders of the topics has been gathered in this volume. This book is designed to be suitable for students and researchers. It is highly recommended as a reference book and for teaching the fascinating topics related to carbohydrates, heterocycles and organic synthesis. In addition to its importance in academia, it is also an excellent source for information about the variety of methods used in the synthesis of heterocycles important to industry.

Biomimetic Radical Chemistry and Applications

Biomimetic Radical Chemistry and Applications PDF Author: Chryssostomos Chatgilialoglu
Publisher: MDPI
ISBN: 3039283928
Category : Technology & Engineering
Languages : en
Pages : 300

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Book Description
The enormous importance of free radical chemistry for a variety of biological events, including ageing and inflammation, has attracted a strong interest in understanding the related mechanistic steps at the molecular level. Modelling the free radical chemical reactivity of biological systems is an important research area. When studying free-radical-based chemical mechanisms, biomimetic chemistry and the design of established biomimetic models come into play to perform experiments in a controlled environment that is suitably designed to be in strict connection with cellular conditions. This Special Issue gives the reader a wide overview of biomimetic radical chemistry, where molecular mechanisms have been defined and molecular libraries of products are developed to also be used as traces for the discovery of some relevant biological processes. Several subjects are presented, with 12 articles and 6 reviews written by specialists in the fields of DNA, proteins, lipids, biotechnological applications, and bioinspired synthesis, having “free radicals” as a common denominator.

Recent Trends in Carbohydrate Chemistry

Recent Trends in Carbohydrate Chemistry PDF Author: Amélia Pilar Rauter
Publisher: Elsevier
ISBN: 0128174684
Category : Science
Languages : en
Pages : 494

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Book Description
Carbohydrate chemistry provides access to carbohydrate-based natural products and synthetic molecules as useful biologically active structures relevant to many health care and disease-related biological processes. Recent Trends in Carbohydrate Chemistry: Synthesis, Structure, and Function of Carbohydrates covers green and sustainable reactions, organometallic carbohydrate chemistry, synthesis of glycomimetics, multicomponent reactions, and chemical transformations leading to molecular diversity based on carbohydrates. These include inhibitors of glycogen phosphorylase, which are relevant in controlling type 2 diabetes and sugar sulfates. Polysaccharides, which are commonly modified chemically, are also examined with contributions covering polysaccharide synthesis and modification of polysaccharides to obtain new structures and properties. Recent Trends in Carbohydrate Chemistry: Synthesis, Structure, and Function of Carbohydrates is ideal for researchers working as synthetic organic chemists, and for those interested in biomolecular chemistry, green chemistry, organometallic chemistry, and material chemistry in academia as well as in industry - Demonstrates the importance of carbohydrate chemistry as green and sustainable chemistry - Details monosaccharide syntheses and transformations toward biologically active small molecular entities - Provides the most recent findings on polysaccharide synthesis and bioapplications

Carbohydrate Chemistry

Carbohydrate Chemistry PDF Author: Christian Vogel
Publisher: CRC Press
ISBN: 1498726925
Category : Medical
Languages : en
Pages : 369

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Book Description
Volumes in the Proven Synthetic Methods Series address the concerns many chemists have regarding irreproducibility of synthetic protocols, lack of identification and characterization data for new compounds, and inflated yields reported in chemical communications—trends that have recently become a serious problem. Featuring contributions from world-renowned experts and overseen by a highly respected series editor, Carbohydrate Chemistry: Proven Synthetic Methods, Volume 4 compiles reliable synthetic methods and protocols for the preparation of intermediates for carbohydrate synthesis or other uses in the glycosciences. Exploring carbohydrate chemistry from both the academic and industrial points of view, this unique resource brings together useful information into one convenient reference. The series is unique among other synthetic literature in the carbohydrate field in that, to ensure reproducibility, an independent checker has verified the experimental parts involved by repeating the protocols or using the methods. The book includes new or more detailed versions of previously published protocols as well as those published in not readily available journals. The essential characteristics of the protocols presented are reliability, updated characterization data for newly synthesized substances and the expectation of wide utility in the carbohydrate field. The protocols presented will be of wide use to a broad range of readers in the carbohydrate field and the life sciences, including undergraduates taking carbohydrate workshops.

Nomenclature, Synthesis and Applications of Spirocyclic Compounds

Nomenclature, Synthesis and Applications of Spirocyclic Compounds PDF Author: Davood Habibi
Publisher: Cambridge Scholars Publishing
ISBN: 1527539423
Category : Science
Languages : en
Pages : 651

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Book Description
This book provides a comprehensive overview for postgraduate students, academic staff and industry professionals working on spiro compounds. This book covers a wide range of topics regarding these compounds, such as nomenclature, synthesis strategies, and their applications. The book includes modern, up-to-date information, dating from 2000 to the present. This extensive collection will inspire both academics and industrialists to contribute to future advances in this field.

Carbohydrate Chemistry

Carbohydrate Chemistry PDF Author: R J Ferrier
Publisher: Royal Society of Chemistry
ISBN: 1847553117
Category : Science
Languages : en
Pages : 432

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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.

Green Chemistry

Green Chemistry PDF Author: Vinod K. Tiwari
Publisher: Springer Nature
ISBN: 9811927340
Category : Science
Languages : en
Pages : 392

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Book Description
This book summarizes fundamentals and advanced topics of green chemistry and highlights the importance and impact of green chemistry over traditional synthetic methods. It discusses about the importance and scope of the catalytic protocols in green chemistry and their application in daily life. Alternate green energy approaches discussed in this book underline the importance of efficiency enhancement with simultaneous energy demand reduction by replacing the dependence on non-renewable energy resources. Various topics covered in this book include green solvents, energy-efficient approach for organic synthesis, catalysis, biocatalysis, and green approach in pharmaceutically important molecules and drugs. The book will be a valuable reference for beginners, researchers, and professionals interested in sustainable green chemistry and their scope in allied fields.