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Statistical Molecular Design of Building Blocks for Combinatorial Chemistry
Umeå University, Faculty of Science and Technology, Department of Chemistry. (Research Group for Chemometrics)
2000 (English)In: Journal of Medicinal Chemistry, Vol. 43, no 7, 1320-8 p.Article in journal (Refereed) Published
Abstract [en]

The reduction of the size of a combinatorial library can be made in two ways, either base the selection on the building blocks (BB's) or base it on the full set of virtually constructed products. In this paper we have investigated the effects of applying statistical designs to BB sets compared to selections based on the final products. The two sets of BB's and the virtually constructed library were described by structural parameters, and the correlation between the two characterizations was investigated. Three different selection approaches were used both for the BB sets and for the products. In the first two the selection algorithms were applied directly to the data sets (D-optimal design and space-filling design), while for the third a cluster analysis preceded the selection (cluster-based design). The selections were compared using visual inspection, the Tanimoto coefficient, the Euclidean distance, the condition number, and the determinant of the resulting data matrix. No difference in efficiency was found between selections made in the BB space and in the product space. However, it is of critical importance to investigate the BB space carefully and to select an appropriate number of BB's to result in an adequate diversity. An example from the pharmaceutical industry is then presented, where selection via BB's was made using a cluster-based design.

Place, publisher, year, edition, pages
2000. Vol. 43, no 7, 1320-8 p.
Identifiers
URN: urn:nbn:se:umu:diva-8449DOI: 10.1021/jm991118xOAI: oai:DiVA.org:umu-8449DiVA: diva2:148120
Available from: 2008-01-22 Created: 2008-01-22 Last updated: 2013-02-28Bibliographically approved

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Linusson, AnnaWold, Svante

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