Novel potent and selective calcium-release-activated calcium (CRAC) channel inhibitors. Part 2: Synthesis and inhibitory activity of aryl-3-trifluoromethylpyrazoles
摘要:
To identify potent and selective calcium-release-activated calcium (CRAG) channel inhibitors, we examined the structure-activity relationships of the pyrazole and thiophene moieties in compound 4. Compound 25b was found to exhibit highly potent and selective inhibitory activity for CRAC channels and further modifications of the pyrazole and benzoyl moieties of compound 25b produced compound 29. These compounds were potent inhibitors of IL-2 production in vitro and also acted as inhibitors in pharmacological models of diseases resulting from T-lymphocyte activation, after oral administration. (c) 2006 Elsevier Ltd. All rights reserved.
Novel potent and selective calcium-release-activated calcium (CRAC) channel inhibitors. Part 2: Synthesis and inhibitory activity of aryl-3-trifluoromethylpyrazoles
To identify potent and selective calcium-release-activated calcium (CRAG) channel inhibitors, we examined the structure-activity relationships of the pyrazole and thiophene moieties in compound 4. Compound 25b was found to exhibit highly potent and selective inhibitory activity for CRAC channels and further modifications of the pyrazole and benzoyl moieties of compound 25b produced compound 29. These compounds were potent inhibitors of IL-2 production in vitro and also acted as inhibitors in pharmacological models of diseases resulting from T-lymphocyte activation, after oral administration. (c) 2006 Elsevier Ltd. All rights reserved.
Indium-Mediated Synthesis of Heterobiaryls
作者:Enrique Font-Sanchis、F. Javier Céspedes-Guirao、Ángela Sastre-Santos、Fernando Fernández-Lázaro
DOI:10.1021/jo062638k
日期:2007.4.1
The palladium-mediated coupling reaction between triorganoindium reagents and organic electrophiles is extended to the synthesis of heteroaromatic compounds. Both electron-rich and electron-poor heterocycles can act as the organic electrophile or as the organoindium derivative.