Synthesis, resolution, absolute stereochemistry, and enantioselectivity of 3',4'-dihydroxynomifensine
作者:Penelope A. Dandridge、Carl Kaiser、Martin Brenner、Dimitri Gaitanopoulos、Larry D. Davis、R. Lee Webb、James J. Foley、Henry M. Sarau
DOI:10.1021/jm00367a006
日期:1984.1
enantiomers of 1a was determined by single-crystal X-ray diffractometric analysis. Examination of the isomers in several pharmacological test systems revealed a high degree of enantioselectivity. D-1 dopaminergic activity resides almost exclusively in the S enantiomer. The findings of the study have been employed to suggest an accessory binding site on the dopamine receptor(s) that differs from that advanced
3',4'-Dihydroxynomifensine,8-amino-1,2,3,4-tetrahydro-4-(3,4-dihydroxyphenyl)-2-methylisoquinoline ne(1a)是中央和周围多巴胺受体的激动剂系统。由于该多巴胺受体激动剂在位置4处具有不对称中心,因此其合成和拆分是作为确定这些试剂与受体相互作用方式的研究的一部分。3',4'-二羟基nomenfensine的对映异构体特别受关注,因为它们提供了多巴胺受体当前概念模型的其他探针。最初准备1a的尝试效率低下或未成功;相反,获得了异构体化合物1,2,4,5-四氢-2-(3,4-二羟基苯基)-4-甲基-3H-1,4-苯并二氮杂(9)。因此,一条通往3',4'的新路线 使用了-二羟基nomifensine。拆分得到的外消旋二甲氧基中间体1d。1d的异构体的甲氧基裂解得到1a的对映体。这些对映体或适当的衍生