Enantioselective total synthesis of (+)-homochelidonine by a PdII-catalyzed asymmetric ring-opening reaction of a meso-azabicyclic alkene with an aryl boronic acid

被引:73
作者
McManus, Helen A. [1 ]
Fleming, Matthew J. [1 ]
Lautens, Mark [1 ]
机构
[1] Univ Toronto, Dept Chem, Davenport Chem Labs, Toronto, ON M5S 3H6, Canada
关键词
alkaloids; asymmetric catalysis; polycycles; ring-opening reactions; total synthesis;
D O I
10.1002/anie.200603945
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
(Chemical Equation Presented) An efficient and highly convergent enantioselective synthesis of (+)-homochelidonine has been achieved (see scheme; Cbz = benzyloxycarbonyl, MOM = methoxymethyl) and relied on a new and powerful desymmetrizing ring-opening reaction of a meso-azabicycle with an aryl boronic acid. The route should allow access to other hexahydrobenzo[c]phenanthridine alkaloids. © 2007 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:433 / 436
页数:4
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