Discovery and optimization of highly ligand-efficient oxytocin receptor antagonists using structure-based drug design |
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Authors: | Benjamin R Bellenie Nicholas P Barton Amanda J Emmons Jag P Heer Cristian Salvagno |
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Institution: | 1. GlaxoSmithKline Pharmaceuticals, New Frontiers Science Park (North), Coldharbour Road, Harlow, Essex CM19 5AD, England, United Kingdom;2. GlaxoSmithKline S.p.A., Medicines Research Centre, Via Fleming 2, Verona, Italy |
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Abstract: | A novel oxytocin antagonist was identified by ‘scaffold-hopping’ using Cresset FieldScreen molecular field similarity searching. A single cycle of optimization driven by an understanding of the key pharmacophoric elements required for activity led to the discovery of a potent, selective and highly ligand-efficient oxytocin receptor antagonist. Selectivity over vasopressin receptors was rationalized based on differences in the structure of the natural ligands. |
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