作者:Xiaobao Yang、Hongbin Zhai、Zhong Li
DOI:10.1021/ol800737d
日期:2008.6.1
We have developed novel asymmetric routes to (-)-9- epi-pentazocine and (-)-aphanorphine from a d-tyrosine derivative. The tricyclic frameworks of (-)-9- epi-pentazocine and (-)-aphanorphine were assembled stereoselectively via intramolecular Friedel-Crafts reaction of the corresponding bicyclic precursors, generated with titanium-promoted enyne cyclization and indium-initiated atom-transfer radical
我们已经开发出从d-酪氨酸衍生物到(-)-9-上喷喷他嗪和(-)-甲啡肽的新颖不对称路线。通过相应的双环前体的分子内Friedel-Crafts反应立体选择性地组装(-)-9-表喷他佐辛和(-)-甲啡肽的三环骨架,该反应由钛促进的烯炔环化和铟引发的原子转移自由基环化产生, 分别。