Structure−Activity Relationships at the Monoamine Transporters and σ Receptors for a Novel Series of 9-[3-(<i>cis</i>-3,5-Dimethyl-1-piperazinyl)-propyl]carbazole (Rimcazole) Analogues
作者:Stephen M. Husbands、Sari Izenwasser、Theresa Kopajtic、Wayne D. Bowen、Bertold J. Vilner、Jonathan L. Katz、Amy Hauck Newman
DOI:10.1021/jm9902943
日期:1999.10.1
and synthesized. Displacement of [(3)H]WIN 35,428 binding at the dopamine transporter in rat caudate-putamen revealed that aromatic substitutions on rimcazole were not well tolerated, generally, with significant reductions in affinity for the 3,6-dibromo (5; K(i) = 3890 nM), 1,3, 6-tribromo (6; K(i) = 30300 nM), 3-amino (8; K(i) = 2400 nM), and 3, 6-dinitro (9; K(i) = 174000 nM) analogues. The N-phenylpropyl
9- [3-(顺式-3,5-二甲基-1-哌嗪基)丙基]咔唑(rimcazole)的特征是作为sigma受体拮抗剂,以适度的亲和力与多巴胺转运蛋白结合(K(i)= 224 nM) 。尽管rimcazole和可卡因在多巴胺转运蛋白上的结合亲和力相当,但rimcazole仅降低了小鼠的自发活动并拮抗可卡因产生的刺激作用。尽管已提出可卡因作用减弱的神经化学机制尚不清楚,但已建议在多巴胺转运蛋白的低亲和力位点/状态相互作用。为了进一步探索这类化合物,设计并合成了一系列rimcazole类似物。[(3)H] WIN 35的位移,428在大鼠尾状-丘脑中的多巴胺转运蛋白上的结合表明,rimcazole上的芳香取代没有很好的耐受性,通常对3,6-dibromo的亲和力显着降低(5; K(i)= 3890 nM),1, 3,6-三溴(6; K(i)= 30300 nM),3-氨基(8; K(i)= 2400