Synthesis and radioiodination of selective ligands for the dopamine D3 receptor subtype
作者:Carsten Hocke、Olaf Prante、Stefan Löber、Harald Hübner、Peter Gmeiner、Torsten Kuwert
DOI:10.1016/j.bmcl.2004.05.052
日期:2004.8
Starting from FAUC 365, a series of iodine substituted heteroaryl carboxamides has been synthesized revealing high affinity and selectivity for the dopamine D3 receptor. Binding data showed a 15-560-fold selectivity for the dopamine D3 over D2. A 2,3-dichloro substitution pattern on the phenylpiperazine moiety led to the highest subtype selectivity, whereas the 2-methoxy substituted compounds showed superior D3 affinity. Suitable precursors were radioiodinated with high radiochemical yields (53-85%) leading to potential imaging agents for the D3 receptor by SPET. (C) 2004 Elsevier Ltd. All rights reserved.