Concise synthesis of pyrrolophenanthridine alkaloids using a Pd-mediated biaryl coupling reaction with regioselective C–H activation via the intramolecular coordination of the amine to Pd
作者:Takashi Harayama、Akihiro Hori、Hitoshi Abe、Yasuo Takeuchi
DOI:10.1016/j.tet.2003.11.093
日期:2004.2
The concise synthesis of Amaryllidaceae alkaloids, such as anhydrolycorinone, anhydrolycorin-7-one, assoanine, and oxoassoanine, which have a pyrrolophenanthridine skeleton, was achieved in moderate yield using the Pd-mediated biaryl coupling reaction of 1-(2-halobenzyl)-2,3-dihydroindole, which applied the regioselective C–H activation method with intramolecular coordination of the benzylamino group
的简洁的合成石蒜生物碱,如anhydrolycorinone,anhydrolycorin -7-酮,assoanine和oxoassoanine,其具有pyrrolophenanthridine骨架,在使用适中的产率获得的Pd介导的联芳基连接的1-(2-卤代)反应- 2,3-二氢吲哚,其使用了区域选择性的C–H活化方法,且苄基氨基与Pd具有分子内配位作用。