Synthesis and receptor binding studies of halogenated N,N-dialkylel-(2-phenyl-1H-indol-3-yl)glyoxylamides to visualize peripheral benzodiazepine receptors with SPECT or PET
作者:Idriss Bennacef、Colin N. Haile、Anne Schmidt、Andrei O. Koren、John P. Seibyl、Julie K. Staley、Frederic Bois、Ronald M. Baldwin、Gilles Tamagnan
DOI:10.1016/j.bmc.2006.07.001
日期:2006.11
A library of halogenated 2-arylindolyl-3-oxocarboxamides was prepared to develop radioligands to visualize cerebral PBR by SPECT and PET imaging. In vitro evaluation showed that most of the synthesized compounds were selective,high-affinity PBR ligands with adequate lipophilicity (log D(7.4) in the range of 1.6-2.4). The iodinated derivative 11 (K(i) = 2.6 nM) and the fluorinated analog 26 (K(i) = 6.2 nM) displayed higher affinity than reference compounds. (c) 2006 Elsevier Ltd. All rights reserved.