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Combining Molecular Scaffolds from FDA Approved Drugs: Application to Drug Discovery

Taylor, Richard D ; Maccoss, Malcolm ; Lawson, Alastair D G

Journal of medicinal chemistry, 09 March 2017, Vol.60(5), pp.1638-1647 [Peer Reviewed Journal]

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  • Title:
    Combining Molecular Scaffolds from FDA Approved Drugs: Application to Drug Discovery
  • Author: Taylor, Richard D ; Maccoss, Malcolm ; Lawson, Alastair D G
  • Description: We have enumerated all linear combinations of ring systems from FDA approved drugs, up to three rings in length and up to four bonds linkers to give an in silico database of approximately 14 million molecules. This virtual library was compared with molecular databases of published and commercially available compounds to assess the prevalence of drug ring combinations in modern medicinal chemistry and to identify areas of under-represented, but clinically validated, chemical space. From the 10 trillion molecular comparisons, we found that less than 1% of the possible combinations of drug ring systems appear in commercially available libraries. This key observation highlights significant opportunities to design new fragment-like and lead-like libraries aimed at improving success rates and reducing risk in small molecule drug discovery, as, based on our previous analysis ( Taylor J. Med. Chem. 2014 , 57 , 5845 - 5849 ), approximately 70% of all new drugs are made up of only ring systems that have been used in existing drugs.
  • Is Part Of: Journal of medicinal chemistry, 09 March 2017, Vol.60(5), pp.1638-1647
  • Identifier: E-ISSN: 1520-4804 ; PMID: 27935308 Version:1 ; DOI: 10.1021/acs.jmedchem.6b01367
  • Subjects: Drug Discovery ; Drug Approval -- Legislation & Jurisprudence
  • Language: English

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