Synthesis, conformation, and dopaminergic activity of 5,6-ethano-bridged derivatives of selective dopaminergic 3-benzazepines
作者:Joseph Weinstock、Hye Ja Oh、Charles W. DeBrosse、Drake S. Eggleston、Margaret Wise、Kathryn E. Flaim、George W. Gessner、John L. Sawyer、Carl Kaiser
DOI:10.1021/jm00391a007
日期:1987.8
4'-dihydroxynomifensine (2) that are selective for this subtype, cis- and trans-2,3,4,8,9,9a-hexahydro-4-phenyl-1H-indeno[1,7-cd]azepine-6,7-diol were prepared. These compounds are 5,6-ethano-bridged derivatives of the D-1 selective dopamine receptor agonist 1. Introduction of the bridge reduces the conformational mobility of the parent molecule. Comprehensive conformational analyses by molecular mechanical
为了探讨有关D-1(DA1)多巴胺受体在激动剂(例如2)中与适当取向的芳香环(即,与邻苯二酚核近似正交的轴向方向)互补的位置可能具有辅助pi结合位点的建议。 ,3,4,5-四氢-1-苯基-1H-3-苯并ze庚因7,8-二醇(1)和3',4'-二羟基nomifensine(2)对这种亚型具有顺式和反式选择性制备了2,3,4,8,9,9a-六氢-4-苯基-1H-茚并[1,7-cd]氮杂-6,7-二醇。这些化合物是D-1选择性多巴胺受体激动剂1的5,6-乙醇桥联衍生物。桥的引入降低了母体分子的构象迁移率。通过分子力学方法进行的全面构象分析表明,顺式和反式异构体均可达到将苯基取代基置于轴向的构象。反式异构体的X射线分析表明苯环的轴向位置。但是,NMR研究表明,这种构象固定在反式异构体中,而不固定在顺式异构体中。顺式异构体的多巴胺受体结合亲和力和内在活性明显高于其反式对应物。顺式异构体还显示出对D-