A σ1 receptor pharmacophore derived from a series of N-substituted 4-azahexacyclo[5.4.1.02,6.03,10.05,9.08,11]dodecan-3-ols (AHDs)
作者:Samuel D. Banister、Miral Manoli、Munikumar Reddy Doddareddy、David E. Hibbs、Michael Kassiou
DOI:10.1016/j.bmcl.2012.08.046
日期:2012.10
A library of N-substituted 4-azahexacyclo[5.4.1.0(2,6).0(3,10).0(5,9).0(8,11)]dodecan-3-ols (AHDs) was synthesized and subjected to competition binding assays at sigma(1) and sigma(2) receptors, as well as off-target screening of representative members at 44 other common central nervous system (CNS) receptors, transporters, and ion channels. Excluding 3 low affinity analogs, 31 ligands demonstrated nanomolar K-i values for either sigma receptor subtype. Several selective sigma(1) and sigma(2) ligands were discovered, with selectivities of up to 29.6 times for sigma(1) and 52.4 times for sigma(2), as well as several high affinity, subtype non-selective ligands. The diversity of structures and sigma(1) affinities of the ligands allowed the generation of a sigma(1) receptor pharmacophore that will enable the rational design of increasingly selective and potent sigma(1) ligands for probing sigma(1) receptor function. (C) 2012 Elsevier Ltd. All rights reserved.