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Issue 12, 2011
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Small-molecule discovery from DNA-encoded chemical libraries

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Abstract

Researchers seeking to improve the efficiency and cost effectiveness of the bioactive small-molecule discovery process have recently embraced selection-based approaches, which in principle offer much higher throughput and simpler infrastructure requirements compared with traditional small-molecule screening methods. Since selection methods benefit greatly from an information-encoding molecule that can be readily amplified and decoded, several academic and industrial groups have turned to DNA as the basis for library encoding and, in some cases, library synthesis. The resulting DNA-encoded synthetic small-molecule libraries, integrated with the high sensitivity of PCR and the recent development of ultra high-throughput DNA sequencing technology, can be evaluated very rapidly for binding or bond formation with a target of interest while consuming minimal quantities of material and requiring only modest investments of time and equipment. In this tutorial review we describe the development of two classes of approaches for encoding chemical structures and reactivity with DNA: DNA-recorded library synthesis, in which encoding and library synthesis take place separately, and DNA-directed library synthesis, in which DNA both encodes and templates library synthesis. We also describe in vitro selection methods used to evaluate DNA-encoded libraries and summarize successful applications of these approaches to the discovery of bioactive small molecules and novel chemical reactivity.

Graphical abstract: Small-molecule discovery from DNA-encoded chemical libraries

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Publication details

The article was received on 23 Mar 2011 and first published on 14 Jun 2011


Article type: Tutorial Review
DOI: 10.1039/C1CS15076F
Citation: Chem. Soc. Rev., 2011,40, 5707-5717
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    Small-molecule discovery from DNA-encoded chemical libraries

    R. E. Kleiner, C. E. Dumelin and D. R. Liu, Chem. Soc. Rev., 2011, 40, 5707
    DOI: 10.1039/C1CS15076F

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