Highly potent and selective zwitterionic agonists of the δ-opioid receptor. Part 1
作者:Donald S. Middleton、Graham N. Maw、Clare Challenger、Alan Jessiman、Patrick S. Johnson、William A. Million、Carly L. Nichols、Jenny A. Price、Michael Trevethick
DOI:10.1016/j.bmcl.2005.10.102
日期:2006.2
A series of zwitterionic delta-opioid agonists, with targeted physicochemistry, as a strategy to limit potential for CNS exposure, were prepared. These agents were found to possess exquisite potency and selectivity over mu and K-opiate activity. Furthermore, analogue 3a was found to display restricted CNS exposure, as evidenced by its inactivity in a rodent hyperlocomotion assay of central opiate activity. Dog pharmacokinetic studies on 3a indicated encouraging oral bioavailability. (c) 2005 Elsevier Ltd. All rights reserved.