Molecular Diversity And Combinatorial Chemistry

Written for advanced undergraduate and graduate students, this textbook makes the main concepts of combinatorial chemistry accessible to the non-specialist.

Reports progress on chemical, enzymatic, phage, and cell-derived libra ries. Discusses synergy between structure-based design and combinatori al libraries. Presents applications of combinatorial libraries to drug discovery and new synthetic catalysis. Reports library screening appr oaches, including the use of NMR. Presents recent advances in solid-ph ase organic synthesis, liquid-phase organic synthesis, and high-throug hput combinatorial organic synthesis. Discusses automation of organic synthesis as well as new methodologies for monitoring solid-phase orga nic synthesis.

High-throughput screening and combinatorial chemistry are two of the most potent weapons ever to have been used in the discovery of new drugs. At a stroke, it seems to be possible to synthesise more molecules in a month than have previously been made in the whole of the distinguished history of organic chemistry, Furthermore, all the molecules can be screened in the same short period. However, like any weapons of immense power, these techniques must be used with care, to achieve maximum impact. The costs of implementing and running high-throughput screening and combinatorial chemistry are high, as large dedicated facilities must be built and staffed. In addition, the sheer number of chemical leads generated may overwhelm the lead optimisation teams in a hail of friendly fire. Mother nature has not entirely surrendered, as the number of building blocks that could be used to build libraries would require more atoms than there are in the universe. In addition, the progress made by the Human Genome Project has uncovered many proteins with different functions but related binding sites, creating issues of selectivity. Advances in the new field of pharmacogenomics will produce more of these challenges. There is a real need to make hi- throughput screening and combinatorial chemistry into 'smart' weapons, so that their power is not dissipated. That is the challenge for modellers, computational chemists, cheminformaticians and IT experts. In this book, we have broken down this grand challenge into key tasks.

Combinatorial chemistry and molecular diversity approaches to scientific inquiry and novel product R&D have exploded in the 1990s! For example, in the preparation of drug candidates, the automated, permutational, and combinatorial use of chemical building blocks now allows the generation and screening of unprecedented numbers of compounds. Drug discovery - better, faster, cheaper? Indeed, more compounds have been made and screened in the 1990s than in the last hundred years of pharmaceutical research. This first volume covers: (i) combinatorial chemistry, (ii) combinatorial biology and evolution, and (iii) informatics and related topics. Within each section chapters are prepared by experts in the field, including, for example, in Section I: Coverage of mixture pools vs. parallel individual compound synthesis, solution vs. solid-phase synthesis, analytical tools, and automation. Section II highlights selection strategies and library-based evolution, phage display, peptide and nucleic acid libraries. Section III covers databases and library design, high through-put screening, coding strategies vs. deconvolutions, intellectual property issues, deals and collaborations, and successes to date.

COMBINATORIAL CHEMISTRY AND MOLECULAR DIVERSITY IN DRUG DISCOVERY Edited by Eric M. Gordon and James F. Kerwin, Jr. Increasing pressure to identify, optimize, develop, and commercialize novel drugs more rapidly and more cost-effectively has led to an urgent demand for technologies that can reduce the time to market for new products. Molecular diversity, of both natural and synthetic materials, provides a valuable source of compounds for identifying and optimizing new drug leads. Through the rapidly evolving technology of combinatorial chemistry, it is now possible to produce libraries of small molecules to screen for novel bioactivities. This powerful new technology has begun to help pharmaceutical companies find new drug candidates quickly, save significant dollars in preclinical development costs, and ultimately change their fundamental approach to drug discovery. Comprising the work of the leading authorities in the area of molecular diversity and combinatorial chemistry, Combinatorial Chemistry and Molecular Diversity in Drug Discovery highlights the critical concepts and issues involved in implementing combinatorial chemistry to create chemical libraries. The authors, industrial and academic experts in the field, apply combinatorial technologies to drug discovery and development and place co-evolving technologies and practices in a global framework. Included among the many topics: * Historical background. * Library strategy and design. * Solid-phase synthesis. * Small molecular libraries. * Automation, analytical, and computational methodology. * Biological diversity. * Strategies for screening combinatorial libraries. * Combinatorial drug screening and development. * Combinatorial chemistry information management. Combinatorial Chemistry and Molecular Diversity in Drug Discovery is one of the first comprehensive books to cover this explosive area. It is must reading for medicinal chemists, pharmacologists, molecular biologists, biochemists, enzymologists, and drug discovery research managers in industry, academia, and government.

Several books on the market cover combinatorial techniques, but they offer just a limited perspective of the field, focusing on selected aspects without examining all approaches and integrated technologies. Combinatorial Chemistry and Technologies: Methods and Applications answers the demand for a complete overview of the field, covering all of the methodologies used in the design, synthesis, and screening of molecular libraries. Now in its second edition, this volume updates prior content and explores new areas such as catalysis, applications in biotechnology, and current ICS-UNIDO activities. Topics include the generation of molecular diversity by chemical methods using solution- and solid-phase chemistries, biological approaches for the production and screening of peptides, antibody and oligonucleotide libraries, and the application of computer-assisted approaches to guide library synthesis. The book establishes the link between combinatorial chemistry and molecular modeling and illustrates the importance of economics and patenting in combinatorial technologies. Valuable to technologists and researchers as an introductory survey on the many aspects of combinatorial chemistry and combinatorial technology, Combinatorial Chemistry and Technologies: Methods and Applications offers an overview of a field that promises broad applicability in the identification of new drugs, as well as in diagnostics, new materials, and catalysis.

Combinatorial chemistry and molecular diversity approaches to scientific and novel product R & D have exploded in the 1990s. For example, in the preparation of drug candidates, the automated, permutational, and combinatorial use of chemical building blocks now allows the generation and screening of unprecedented numbers of compounds. Drug discovery - better, faster, cheaper? Indeed more compounds have been made and screened in the 1990s than in the last hundred years of pharmaceutical research. The second volume in this series includes contributions on methods, solid phases, purification, analysis, carbohydrates, patent strategies and tactics, diversity profiling and combinatorial series design, and finishes with a survey of chemical libraries yielding biologically active agents and a compendium of solid phase chemistry publications. Each contribution is prepared by a recognized expert resulting in a high quality account of the recent advances in the field.

The essence of combinatorial chemistry or techniques involving "molecular diversity" is to generate enormous populations of molecules and to exploit appropriate screening techniques to isolate active components contained in these libraries. This idea has been the focus of research both in academia and in the pharmaceutical or biotechnology industry. Its developments go hand in hand with an exploding number of potential drug targets emerging from genomics and proteomics research. When the editors of Current Topics in Microbiology and Immunology encouraged us to assemble the present volume on Combinatorial Chemistry in Biology, we immediately felt that this might prove quite beneficial for the audience of this series. The field of combinatorial chemistry extends over a broad range of disciplines, from synthetic organic chemistry to biochemistry, from material sciences to cell biology. Each of these fields may have its own view on this topic, something which is reflected in a growing number of monographs and "special editions" of jour nals devoted to this issue or aspects thereof. The title of the present volume of Springer-Verlag's series suggests that it also has its own special focus. And, generally speaking, this is not wrong: we would even claim the special focus of this volume is on the immunologically relevant aspects of combinatorial chemistry.