<i>trans</i>-2,3-Dihydroxy-6a,7,8,12b-tetrahydro-6<i>H</i>-chromeno[3,4-<i>c</i>]isoquinoline: Synthesis, Resolution, and Preliminary Pharmacological Characterization of a New Dopamine D<sub>1</sub> Receptor Full Agonist
作者:Juan Pablo Cueva、Gianfabio Giorgioni、Russell A. Grubbs、Benjamin R. Chemel、Val J. Watts、David E. Nichols
DOI:10.1021/jm0604979
日期:2006.11.1
7,8,12b-tetrahydro-6H-chromeno[3,4-c]isoquinoline hydrochloride 6 and the resolution of its enantiomers. This new compound is an oxygen bioisostere of the potent dopamine D1-selective full agonist dihydrexidine. The initial synthetic approach involved, as a key step, a Suzuki coupling between a chromene triflate and a boronate ester, followed by isoquinoline formation and reduction of the resulting
我们报告了反式-2,3-二羟基-6a,7,8,12b-四氢-6H-铬[3,4-c]异喹啉盐酸盐6的合成及其对映异构体的拆分。这种新化合物是强效多巴胺D1选择性完全激动剂二氢己定的氧生物等排体。作为关键步骤,最初的合成方法涉及三氟甲基苯甲醛和硼酸酯之间的Suzuki偶联,然后形成异喹啉并还原生成的异喹啉。随后,开发了一种更有效的方法,该方法涉及将芳基格氏试剂共轭添加到2-硝基苯并二硝基苯。标题化合物对天然纹状体组织中的猪D1样受体具有高亲和力(Ki = 20-30 nM),对克隆的人多巴胺D1受体具有完全的内在活性,但对多巴胺D2样受体具有较低的亲和力(Ki = 3000 nM) )。