Journal article

Design, synthesis, and subtype selectivity of 3,6-disubstituted beta-carbolines at Bz/GABA(A)ergic receptors. SAR and studies directed toward agents for treatment of alcohol abuse

Wenyuan Yin, Samarpan Majumder, Terry Clayton, Steven Petrou, Michael L VanLinn, Ojas A Namjoshi, Chunrong Ma, Brett A Cromer, Bryan L Roth, Donna M Platt, James M Cook

Bioorganic & Medicinal Chemistry | PERGAMON-ELSEVIER SCIENCE LTD | Published : 2010

Abstract

A series of 3,6-disubstituted β-carbolines was synthesized and evaluated for their in vitro affinities at α(x)β(3)γ(2) GABA(A)/benzodiazepine receptor subtypes by radioligand binding assays in search of α(1) subtype selective ligands to treat alcohol abuse. Analogues of β-carboline-3-carboxylate-t-butyl ester (βCCt, 1) were synthesized via a CDI-mediated process and the related 6-substituted β-carboline-3-carboxylates 6 including WYS8 (7) were synthesized via a Sonogashira or Stille coupling processes from 6-iodo-βCCt (5). The bivalent ligands of βCCt (32 and 33) were also designed and prepared via a palladium-catalyzed homocoupling process to expand the structure-activity relationships (SAR..

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