Download or read book Synthesis of Conformationally Restricted beta turn Mimics written by Maarten IJsselstijn and published by . This book was released on 2006 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Organic Synthesis written by Atta-ur-Rahman and published by Bentham Science Publishers. This book was released on 2013-03-27 with total page 513 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Organic Synthesis is a book series devoted to the latest advances in synthetic approaches towards challenging structures. It presents comprehensive articles written by eminent authorities on different synthetic approaches to selected target molecules and new methods developed to achieve specific synthetic transformations. Contributions are written by eminent scientists and each volume is edited by an authority in the field. Advances in Organic Synthesis is essential for all organic chemists in the academia and industry who wish to keep abreast of rapid and important developments in the field.
Download or read book Expanding Beta turn Analogs for Mimicking Protein protein Hot Spots written by Samuel Onofre J. Reyes and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Solid-phase syntheses of two 14-membered ring peptidomimetics were done to determine whether or not a beta-turn structure can facilitate macrocyclization. NMR methods, together with CD and QMD calculations, do not fully support this assumption. However, cyclizations of more ordered structures like those of compounds 2 were more efficient than those for highly strained ring systems like 1. A small library of 18-membered ring peptidomimetics that accommodate an extra amino acid residue was synthesized on resin. Their syntheses were not complicated by head-to-tail dimer impurity, unlike those for previously synthesized 14-membered systems. These larger macrocycles exhibit beta-turn structures as verified by NMR, CD and QMD techniques. Moreover, two compounds in this series (3a and 3g) were shown to have agonistic properties for TrkC in cell survival assays. Dimerization of monovalent mimics was achieved first by modifying the organic template so that monovalent mimics with requisite functional groups can be synthesized. Second, the monovalent units were dimerized using sequential nucleophilic substitutions on fluorescently labeled dichlorotriazine. Our rationale to make bivalent compounds out of monovalent ones was justified when compound 4 was shown to bind TrkA with a 20 nM affinity. Reactions of amino acids with NH4SCN under acylating conditions produced 2-thiohydantoins in which the nitrogen of the amino acid (N1) was acylated. This was proven by 2-D NMR which showed no cross-peak between the NH signal observed and the C[alpha]-H of the amino acid. When the compound was deacylated, a new NH signal appeared and the corresponding cross-peak with the C[alpha]-H was observed. Solution-phase syntheses of non-peptidic mimics were achieved by doing a double substitution on a dihalogenated nitrobenzene scaffold. Sonogashira and SNAr reactions were done to install the required side-chains to give the desired compounds. These non-peptidic compounds can be easily adapted to our DTAF-Inp dimerization protocol since the nitro groups can be easily reduced. Attempts to make a spirotetracyclic peptidomimetic with three side chain mimics were done by synthesizing the spirocyclic diketopiperazine precursor. The synthesis of the DKP was achieved by making the cyclic quaternary amino acid that was coupled to another amino acid via the HOAt-EDC method. This protocol gave dipeptides in high yields. These dipeptides were deprotected and cyclized to the DKP under mildly acidic conditions in toluene.
Download or read book Peptidomimetics II written by William D. Lubell and published by Springer. This book was released on 2016-11-25 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: The series Topics in Heterocyclic Chemistry presents critical reviews on present and future trends in the research of heterocyclic compounds. Overall the scope is to cover topics dealing with all areas within heterocyclic chemistry, both experimental and theoretical, of interest to the general heterocyclic chemistry community. The series consists of topic related volumes edited by renowned editors with contributions of experts in the field. All chapters from Topics in Heterocyclic Chemistry are published Online First with an individual DOI. In references, Topics in Heterocyclic Chemistry is abbreviated as Top Heterocycl Chem and cited as a journal.
Download or read book Synthesis and Conformational Evaluation of Small Molecule Mimics of Naturally occurring Peptidic Inhibitors written by Andrea Marie Thieme and published by . This book was released on 1991 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis of Heterocycles by Metathesis Reactions written by Joëlle Prunet and published by Springer. This book was released on 2016-11-26 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: The series Topics in Heterocyclic Chemistry presents critical reviews on present and future trends in the research of heterocyclic compounds. Overall the scope is to cover topics dealing with all areas within heterocyclic chemistry, both experimental and theoretical, of interest to the general heterocyclic chemistry community. The series consists of topic related volumes edited by renowned editors with contributions of experts in the field. All chapters from Topics in Heterocyclic Chemistry are published Online First with an individual DOI. In references, Topics in Heterocyclic Chemistry is abbreviated as Top Heterocycl Chem and cited as a journal.
Download or read book Heterocyclic Scaffolds I written by Bimal K. Banik and published by Springer. This book was released on 2010-06-01 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents: B. Alcaide ∙ P. Almendros: Novel Aspects on the Preparation of Spirocyclic and Fused Unsual β-Lactams.- S.S. Bari ∙ A. Bhalla: Spirocyclic β-Lactams: Synthesis and Biological Evaluation of Novel Heterocycles.- L. Troisi ∙ C. Granito ∙ E. Pindinelli: Novel and Recent Synthesis and Applications of β-Lactams.- C. Palomo ∙ M. Oiarbide: β-Lactams Ring Opening: A Useful Entry to Amino Acids and Relevant Nitrogen-Containing Compounds.- B. Mandal ∙ P. Ghosh ∙ B. Basu: Recent Approaches Towards Solid Phase Synthesis of β-Lactams.- A.Arrieta ∙ B. Lecea ∙ F.P. Cossio: Computational Studies on the Synthesis of β-Lactams Via [ 2+2] Thermal Cycloadditions.- B. K. Banik ∙ I. Banik ∙ F. F. Becker: Novel Anticancer β-Lactams
Download or read book Beta Lactams written by Bimal K. Banik and published by Springer. This book was released on 2017-05-11 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents an essential overview of beta-lactams and their medicinal value and use in the preparation of other biologically active compounds. Written by internationally respected authors, the individual chapters explore beta-lactams’ synthesis, their mechanism of formation, biological effects, and function as base materials for other heterocycles of major importance.
Download or read book The Synthesis and Evaluation of Cyclic Biphenyl Ether Peptides as Mimetics of beta sheet Structures and Protease Inhibitors written by James W. Janetka and published by . This book was released on 1996 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemtracts written by and published by . This book was released on 1995 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Carbohydrate spiro heterocycles written by László Somsák and published by Springer Nature. This book was released on 2019-10-26 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Amino Acids Peptides and Proteins in Organic Chemistry Protection Reactions Medicinal Chemistry Combinatorial Synthesis written by and published by John Wiley & Sons. This book was released on 2011-06-03 with total page 541 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the fourth of five books in the Amino Acids, Peptides and Proteins in Organic Synthesis series. Closing a gap in the literature, this is the only series to cover this important topic in organic and biochemistry. Drawing upon the combined expertise of the international "who's who" in amino acid research, these volumes represent a real benchmark for amino acid chemistry, providing a comprehensive discussion of the occurrence, uses and applications of amino acids and, by extension, their polymeric forms, peptides and proteins. The practical value of each volume is heightened by the inclusion of experimental procedures. The 5 volumes cover the following topics: Volume 1: Origins and Synthesis of Amino Acids Volume 2: Modified Amino Acids, Organocatalysis and Enzymes Volume 3: Building Blocks, Catalysis and Coupling Chemistry Volume 4: Protection Reactions, Medicinal Chemistry, Combinatorial Synthesis Volume 5: Analysis and Function of Amino Acids and Peptides The fourth volume in this series is structured in three main sections. The first section is about protection reactions and amino acid based peptidomimetics. The second, and most extensive, part is devoted to the medicinal chemistry of amino acids. It includes, among others, the chemistry of alpha- and beta amino acids, peptide drugs, and advances in N- and O-glycopeptide synthesis. The final part deals with amino acids in combinatorial synthesis. Methods, such as phage display, library peptide synthesis, and computational design are described. Originally planned as a six volume series, Amino Acids, Peptides and Proteins in Organic Chemistry now completes with five volumes but remains comprehensive in both scope and coverage. Further information about the 5 Volume Set and purchasing details can be viewed here.
Download or read book Organic Reactions Volume 102 written by and published by John Wiley & Sons. This book was released on 2020-07-08 with total page 990 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 102nd volume in this series for organic chemists in academia and industry presents critical discussions of widely used organic reactions or particular phases of a reaction. The material is treated from a preparative viewpoint, with emphasis on limitations, interfering influences, effects of structure and the selection of experimental techniques. The work includes tables that contain all possible examples of the reaction under consideration. Detailed procedures illustrate the significant modifications of each method.
Download or read book The Aza annulation Reaction as a Synthetic Tool for Asymmetric Synthesis and the Construction of Potentially Biologically Active Compounds written by Petr Beňovský and published by . This book was released on 1997 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Current Trends in Organic Synthesis written by Carlo Scolastico and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Peptides for Youth written by Susan Valle and published by Springer Science & Business Media. This book was released on 2009-06-23 with total page 703 pages. Available in PDF, EPUB and Kindle. Book excerpt: The American Peptide Society (APS) provides a forum for advancing and promoting knowledge of the chemistry and biology of peptides. The approximately one thousand members of the Society come from North America and from more than thirty other countries throughout the world. Establishment of the APS was a result of the rapid worldwide growth that has occurred in peptide-related research, and of the increasing interaction of peptide scientists with virtually all fields of science. Peptides for Youth: The Proceedings of the the 20th American Peptide Symposium will highlight many of the recent developments in peptide science, with a particular emphasis on how these advances are being applied to basic problems in biology and medicine. The 20th American Peptide Symposium will take place June 26 - 30, 2007 in Montreal, Canada.
Download or read book Synthesis of 5 6 5 Spiro Bicyclic Lactams and Photoaffinity Labeling Ligands as PLG Analogues and Stereoselective Synthesis of Alpha substituted Gamma Lactams written by Bhooma Raghavan and published by . This book was released on 2006 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
