Substituted Imidazoles as Glucagon Receptor Antagonists
作者:Linda L. Chang、Kelly L. Sidler、Margaret A. Cascieri、Stephen de Laszlo、Greg Koch、Bing Li、Malcolm MacCoss、Nathan Mantlo、Stephen O'Keefe、Margaret Pang、Anna Rolando、William K. Hagmann
DOI:10.1016/s0960-894x(01)00498-x
日期:2001.9
A modestly active, nonselective triarylimidazole lead was optimized for binding affinity with the human glucagon receptor. This led to the identification of a 2- and/or 4-alkyl or alkyloxy substituent on the imidazole C4-aryl group as a structural determinant for significant enhancement in binding with the glucagon receptor (e.g., 41, IC50 = 0.053 muM) and selectivity (> 1000x) over p38 MAP kinase in this class of compounds. (C) 2001 Elsevier Science Ltd. All rights reserved.
Synthesis of functionalised 4H-quinolizin-4-ones via tandem Horner–Wadsworth–Emmons olefination/cyclisation
作者:Calum W. Muir、Alan R. Kennedy、Joanna M. Redmond、Allan J. B. Watson
DOI:10.1039/c3ob40578h
日期:——
4H-Quinolizin-4-ones are a unique class of heterocycle with valuable physicochemical properties and which are emerging as key pharmacophores for a range of biological targets. A tandem HornerâWadsworthâEmmons olefination/cyclisation method has been developed to allow facile access to substituted 4H-quinolizin-4-ones encoded with a range of functional groups.