Evaluation of cis- and trans-9- and 11-Hydroxy-5,6,6a,7,8,12b-hexahydrobenzo[a]phenanthridines as Structurally Rigid, Selective D1 Dopamine Receptor Ligands
作者:William K. Brewster、David E. Nichols、Val J. Watts、Robert M. Riggs、Dave Mottola、Richard B. Mailman
DOI:10.1021/jm00002a013
日期:1995.1
or 11-monohydroxy analogues of (+/-)-trans-10,11-dihydroxy-5,6,6a,7,8,12b-hexahydrobenzo[a] phenanthridine (8a, dihydrexidine), previously identified as the first full efficacy D1 dopamine receptor agonist. The monohydroxybenzo[a]phenanthridines were prepared from the appropriately substituted beta-tetralones using the methods described earlier for the synthesis of their catechol analogues. The 10-bromo
本研究报告了某些(+/-)-trans-10,11-dihydroxy-5,6,6a,7,8的顺式或反式9或11-单羟基类似物的D1结构关系的研究,12b-六氢苯并[a]菲啶(8a,二氢己定),先前被确定为第一个具有完全功效的D1多巴胺受体激动剂。使用较早描述的合成儿茶酚类似物的方法,由适当取代的β-四氢萘酮制备单羟基苯并[a]菲啶。通过在氯仿中用溴处理前体9c来制备10-溴11-羟基衍生物9e。在大鼠纹状体膜中评估了这些化合物对D1和D2多巴胺受体的亲和力及其对腺苷酸环化酶活性的影响。除了仅使腺苷酸环化酶活性增加极少(<或= 15%)外,这些酚类衍生物对D1和D2受体的亲和力通常显着低于D1和D2受体(D1 IC50>或= 102 nM,D2 IC50>或= 210 nM)。做了他们的邻苯二酚类似物。此外,带有顺式B / C环融合的化合物显示的亲和力比带有反式构型的化合物低,这与邻苯二酚