Synthesis and in vitro activity of N-benzyl-1-(2,3-dichlorophenyl)-1H-tetrazol-5-amine P2X7 antagonists
作者:Arturo Perez-Medrano、Diana L. Donnelly-Roberts、Alan S. Florjancic、Derek W. Nelson、Tongmei Li、Marian T. Namovic、Sridhar Peddi、Connie R. Faltynek、Michael F. Jarvis、William A. Carroll
DOI:10.1016/j.bmcl.2011.04.024
日期:2011.6
Synthesis and biological evaluation of a novel class of substituted N-benzyl-1-(2,3-dichlorophenyl)-1H-tetrazol-5-amine derivatives resulted in the identification of potent P2X(7) antagonists. These compounds were assayed for activity at both the human and rat P2X(7) receptors. On the benzyl moiety, a variety of functional groups were tolerated, including both electron-withdrawing and electron-donating substituents. Ortho-substitution on the benzyl group provided the greatest potency. The ortho-substituted analogs showed approximately 2.5-fold greater potency at human compared to rat P2X(7) receptors. Compounds 12 and 38 displayed hP2X(7) pIC(50)s > 7.8 with less than 2-fold difference in potency at the rP2X(7). (C) 2011 Elsevier Ltd. All rights reserved.