Structure–activity relationships of 1,5-biaryl pyrroles as EP1 receptor antagonists

Autor: Nicholas Maughan Clayton, Gerard Martin Paul Giblin, Mark Patrick Healy, Anton D. Michel, Riccardo Novelli, Beverley Hammond, Stephen John Atkinson, Sac P. Tang, Susan H. Brown, Matthew R. Johnson, Anita Chowdhury, Alan Naylor, David J. Spalding, Adrian Hall, Iain P. Chessell, Robert Gleave, Tanya Coleman
Rok vydání: 2006
Předmět:
Zdroj: Bioorganic & Medicinal Chemistry Letters. 16:3657-3662
ISSN: 0960-894X
DOI: 10.1016/j.bmcl.2006.04.073
Popis: The preliminary SAR of a series of novel 1,5-biaryl pyrrole EP1 receptor antagonists derived from compound 1 is described. Replacement of the benzyl group of 1 with isosteric groups was investigated. The most effective replacement was found to be the isobutyl group. The cyclopentylmethyl and cyclohexylmethyl groups were also effective benzyl replacements. The cyclohexylmethyl derivative 19 demonstrated the lowest metabolic clearance within this series. In addition, several high affinity substituted benzyl analogues were also identified. Compound 39 was found to have good bioavailability in rats and demonstrated efficacy in the established FCA preclinical model of inflammatory pain with a calculated ED50 of 9.2 mg/kg.
Databáze: OpenAIRE