Synthesis of Enantiopure 10-Nornaltrexones in the Search for Toll-like Receptor 4 Antagonists and Opioid Ligands
作者:Brandon R. Selfridge、Jeffrey R. Deschamps、Arthur E. Jacobson、Kenner C. Rice
DOI:10.1021/jo500568s
日期:2014.6.6
5,6-hexahydro-1H-benzofuro[3,2-e]isoquinolin-7(7aH)-one, 1) have been underexploited in the search for better opioid ligands, and their enantiomers have been unexplored. The synthesis of trans-isoquinolinone 2 (4-aH, 9-O-trans-9-methoxy-3-methyl-2,3,4,4a,5,6-hexahydro-1H-benzofuro[3,2-e]isoquinolin-7(7aH)-one) was achieved through a nonchromatographic optimized synthesis of the intermediate pyridinyl
10-Nornaltrexones (3-(cyclopropylmethyl)-4a,9-dihydroxy-2,3,4,4a,5,6-hexahydro-1 H -benzofuro [3,2 - e ]isoquinolin-7(7a H )-one , 1 ) 在寻找更好的阿片类配体方面未得到充分利用,并且它们的对映异构体尚未得到探索。的合成反式-异喹啉2(4-AH,9- ö -反式-9-甲氧基-3-甲基甲基-2,3,4,4a,5,6-六氢-1 ħ -benzofuro [3,2- ë ] isoquinolin -7(7a H )-one) 是通过中间体吡啶基化合物12的非色谱优化合成实现的。光学分辨率在2,并且每种对映异构体都用于“非天然”4a R ,7a S ,12b R -(+)- 1 ) 及其“天然”对映异构体 (-)- 1 的有效合成。在对映异构异喹啉酮 (+)- 和 (-)-