Synthesis and Nicotinic Binding Studies on Enantiopure Diazine Analogues of the Novel (2-Chloro-5-pyridyl)-9-azabicyclo[4.2.1]non-2-ene UB-165
作者:Holger Gohlke、Daniela Gündisch、Simone Schwarz、Gunther Seitz、Maria Cristina Tilotta、Thomas Wegge
DOI:10.1021/jm010936y
日期:2002.2.1
bioisosteric potential of diazines in the field of (+)-anatoxin-a-type structures. In the series of diazine analogues of deschloro-UB-165 (DUB-165, 6), bioisosteric replacement of the 3-pyridyl pharmacophoric element by a 4-pyridazinyl, 5-pyrimidinyl, or 2-pyrazinyl moiety resulted in novel nAChR ligands 7, 8, and 9. A palladium-catalyzed Suzuki cross-coupling of the 3-diethylboranylpyridine (14) and
作为我们计划的一部分,该计划旨在优化毒性影响之外的治疗效果(如在自然存在的烟碱乙酰胆碱受体调节剂中观察到的(-)-烟碱,(-)-依巴替丁,(-)-铁精氨酸和(+)-毒素A) ),我们研究了(+)-毒素A型结构领域中二嗪的生物甾体潜力。在deschloro-UB-165(DUB-165,6)的二嗪类似物系列中,3-吡啶基药效基团被4-吡啶并嗪基,5-嘧啶基或2-吡嗪基部分生物等位取代产生了新的nAChR配体7 ,8和9。钯催化的3-diethylboranylpyridine(14)的Suzuki交联和相应的三丁基锡烷基二嗪15-17与N保护的9-氮杂双环[的三氟甲磺酸乙烯酯13]的Stille交联。 4.2。1] nonan-2-one 12构成这些对映纯的抗毒素类化合物6-9的合成关键步骤。通过放射性配体结合测定法对(α4)(2)(β2)(3),α3β4和α7nAChR亚型的体外亲和力研