Ligands for Brain Cholinergic Channel Receptors: Synthesis and in Vitro Characterization of Novel Isoxazoles and Isothiazoles as Bioisosteric Replacements for the Pyridine Ring in Nicotine
作者:David S. Garvey、James T. Wasicak、Richard L. Elliott、Suzanne Lebold、Ann-Marie Hettinger、George M. Carrera、Nan-Horng Lin、Yun He、Mark W. Holladay
DOI:10.1021/jm00052a005
日期:1994.12
(S)-nicotine (2a) in a preparation of whole rat brain. However, in a paradigm measuring the evoked release of [3H]dopamine from a preparation of rat striatum, there were differences in the agonist potencies and efficacies of these analogues relative to 2a. The differences in agonist potency observed between compounds of comparable binding potency may be due to differences in ligand interactions with various
激活神经元烟碱型乙酰胆碱受体(nAChRs)的配体代表了姑息治疗与阿尔茨海默氏病(AD)相关的记忆丧失症状的潜在方法。基于此方法,制备了一系列新颖的3,5-二取代异恶唑和异噻唑,并在体外作为神经元nAChR的胆碱能通道激活剂(ChCA)进行了评估。发现在整个大鼠脑的制备中,许多3-取代的5-(2-吡咯烷基)异恶唑具有与(S)-尼古丁(2a)相当的纳摩尔结合亲和力。然而,在测量从大鼠纹状体制剂中诱发的[3H]多巴胺释放的范例中,这些类似物相对于2a的激动剂效力和功效存在差异。