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  • Title: Synthesis and structure-activity relationship of a new series of COX-2 selective inhibitors: 1,5-diarylimidazoles.
    Author: Almansa C, Alfón J, de Arriba AF, Cavalcanti FL, Escamilla I, Gómez LA, Miralles A, Soliva R, Bartrolí J, Carceller E, Merlos M, García-Rafanell J.
    Journal: J Med Chem; 2003 Jul 31; 46(16):3463-75. PubMed ID: 12877584.
    Abstract:
    The synthesis and the pharmacological activity of a series of 1,5-diarylimidazoles developed as potent and selective cyclooxygenase-2 (COX-2) inhibitors are described. The new compounds were evaluated both in vitro (COX-1 and COX-2 inhibition in human whole blood) and in vivo (carrageenan-induced paw edema, air-pouch, and hyperalgesia tests). Modification of all the positions of two regioisomeric imidazole cores led to the identification of 4-[4-chloro-5-(3-fluoro-4-methoxyphenyl)imidazol-1-yl]benzenesulfonamide (UR-8880, 51f) as the best candidate, which is now undergoing Phase I clinical trials.
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