Peptidomimetics In Organic And Medicinal Chemistry

A peptidomimetic is a small protein-like chain designed to mimic a peptide with adjusted molecular properties such as enhanced stability or biological activity. It is a very powerful approach for the generation of small-molecule-based drugs as enzyme inhibitors or receptor ligands. Peptidomimetics in Organic and Medicinal Chemistry outlines the concepts and synthetic strategies underlying the building of bioactive compounds of a peptidomimetic nature. Topics covered include the chemistry of unnatural amino acids, peptide- and scaffold-based peptidomimetics, amino acid-side chain isosteres, backbone isosteres, dipeptide isosteres, beta-turn peptidomimetics, proline-mimetics as turn inducers, cyclic scaffolds, amino acid surrogates, and scaffolds for combinatorial chemistry of peptidomimetics. Case studies in the hit-to-lead process, such as the development of integrin ligands and thrombin inhibitors, illustrate the successful application of peptidomimetics in drug discovery.

This brief describes studies conducted by the authors on mid-size drugs utilizing peptides and peptidomimetics, and on the development of anti-HIV agents. Peptides are important biological molecules and have various physiological actions. Peptide-based drug discovery may help bring about the development of useful medicines that are highly safe and show potent pharmacological effects in small doses. Recently, it has been shown that there is an important drug-like space in the mid-sized region between low- and high-molecular-weight compounds. Thus, mid-size drugs such as peptide compounds are being focused on. To date, several peptidomimetics that mimic primary, secondary, and tertiary structures of peptides have been developed to maintain and improve biological activities and actions of peptides. In this book, the features and advantages of mid-size drugs are described in detail. In addition, the merits of utilizing peptidomimetics in the development of mid-size drugs are referred to. Understanding such peptide-derived mid-size drugs will lead to a comprehensive expansion of medicinal chemistry.

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.

Peptidomimetics are compounds which mimic the biological activity of peptides while offering the advantages of increased bioavailability, biostability, bioefficiency, and bioselectivity against the natural biological target of the parent peptide. Examples of peptidomimetics have been isolated as natural products, synthesized as libraries from novel subunits, and designed on the basis of X-ray crystallographic studies and through an intricate knowledge of the biological mode of action of natural peptides. They offer challenging synthetic targets and are increasingly important medicinal agents and biological probes. As a consequence, peptidomimetics embrace much of what is modern medicinal and organic chemistry. This volume highlights some recent and exciting developments in the area.

This is the fourth of five books in the Amino Acids, Peptidesand Proteins in Organic Synthesis series. Closing a gap in the literature, this is the only series tocover this important topic in organic and biochemistry. Drawingupon the combined expertise of the international "who's who" inamino acid research, these volumes represent a real benchmark foramino acid chemistry, providing a comprehensive discussion of theoccurrence, uses and applications of amino acids and, by extension,their polymeric forms, peptides and proteins. The practical value of each volume is heightened by theinclusion 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 mainsections. The first section is about protection reactions and aminoacid based peptidomimetics. The second, and most extensive, part isdevoted to the medicinal chemistry of amino acids. It includes,among others, the chemistry of alpha- and beta amino acids, peptidedrugs, and advances in N- and O-glycopeptide synthesis. The finalpart deals with amino acids in combinatorial synthesis. Methods,such as phage display, library peptide synthesis, and computationaldesign are described. Originally planned as a six volume series, Amino Acids,Peptides and Proteins in Organic Chemistry now completes withfive volumes but remains comprehensive in both scope andcoverage. ahref="http://eu.wiley.com/WileyCDA/WileyTitle/productCd-3527335463.html"Furtherinformation about the 5 Volume Set and purchasing details can beviewed here./a

Many physiologically important receptors and enzymes are regulated by their endogenous ligands and inhibitors. Nature chose to utilize these p- tides as chemical switches since they can be efficiently synthesized and - graded in cells, thus providing an immediate response to a fast changing environment. Such properties, so critical in cell survival, make peptides less than ideal drug candidates. Other frequently desired properties in drug m- ecules include oral bioavailability, the ability to cross membranes, including the blood-brain barrier, and sufficient stability for administration 1-2 times a day. In spite of these obstacles, some natural peptides and proteins are ind- putably successful medicines and have become drugs of choice. Further - vances in peptide-based pharmaceuticals are critically dependent on both new delivery methods and new chemical approaches to the conversion of these molecules to druglike entities. In addition, peptides are also the natural sta- ing points for optimization of their pharamacological and chemical prop- ties, which may lead to superior drugs. Peptidomimetics Protocols deals with both aspects of peptide pharmaceuticals, through the tools of modern s- thetic and medicinal chemistry. The last decade has witnessed a steady stream of new synthetic approaches to peptide mimetics, compounds that replace phy- ologically vulnerable peptide functionalities with chemical modules of - creased stability and cellular penetration. The chapters have been written by both academic and industrial chemists, and focus on the practical synthetic preparation of peptide mimetics.

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.

Peptide and Peptidomimetic Therapeutics: From Bench to Beside offers applied, evidence-based instruction on developing and applying peptide therapeutics in disease treatment, driving drug discovery, and improving patient care. Here, researchers, clinicians and students will find tools to harness the full power of peptides and peptidomimetics and improve bioavailability, stability, efficiency and selectivity of new therapeutics and their application in treatment plans. More than 20 leaders in the field share their approaches for identifying and advancing peptide and peptidomimetic therapeutics. Topics examined run from "bench to bedside," beginning with fundamental peptide science, protein-protein interactions and peptide synthesis. Later chapters examine modes for peptide drug delivery, including cell penetration peptide and peptidomimetic delivery, as well as the targeting of specific disease types, peptide therapeutics as applied to infectious disease, cancer, metabolic disorders, neurodegenerative disorders, and skin disorders, and antiparasitic and immunosuppressive peptidomimetics. Helps researchers and clinicians harness the full of power of peptides and peptidomimetics in their daily work and drug discovery Features chapters running from “bench to bedside , providing a thorough grounding in fundamental peptide science, drug delivery methods, and targeting of specific disease types Features chapter contributions from international leaders in peptide science and drug development