Lobeline esters as novel ligands for neuronal nicotinic acetylcholine receptors and neurotransmitter transporters
作者:Marhaba Hojahmat、David B. Horton、Seth D. Norrholm、Dennis K. Miller、Vladimir P. Grinevich、Agripina Gabriela Deaciuc、Linda P. Dwoskin、Peter A. Crooks
DOI:10.1016/j.bmc.2009.12.002
日期:2010.1
antagonist at α4β2∗ nicotinicacetylcholinereceptors, has moderate affinity (Ki = 5.46 μM) for VMAT2, and is being investigated currently as a clinical candidate for treatment of psychostimulant abuse. A series of carboxylic acid and sulfonic acid ester analogs 2–20 of lobeline were synthesized and evaluated for interaction with α4β2∗ and α7∗ neuronalnicotinicacetylcholinereceptors (nAChRs), the
囊泡单胺转运蛋白 2 (VMAT2) 是开发精神兴奋剂滥用药物治疗的可行目标。Lobeline ( 1 ) 是 α4β2∗ 烟碱型乙酰胆碱受体的强效拮抗剂,对 VMAT2 具有中等亲和力 ( K i = 5.46 μM),目前正在研究作为治疗精神兴奋剂滥用的临床候选药物。一系列羧酸和磺酸酯的类似物2 - 20洛贝林的合成和评价与α4β2相互作用*和α7*神经元烟碱乙酰胆碱受体(nAChRs),多巴胺转运蛋白(DAT),血清素转运蛋白(SERT)和VMAT2。羧酸酯和磺酸酯对 α7* nAChR 的亲和力都很低。类似于 lobeline (K i = 4 nM),磺酸酯对 α4β2∗ ( K i = 5–17 nM)具有高亲和力。lobeline ( 2 – 4 ) 的芳香族羧酸酯类似物在 α4β2* nAChRs 上的效力比 lobeline 低 100–1000 倍,而脂肪族羧酸酯类似物在