Asymmetric Total Syntheses of Naphthylisoquinoline Alkaloids via Atroposelective Coupling Reaction Using Central Chirality as Atroposelectivity-Controlling Group
作者:Young-In Jo、Chun-Young Lee、Cheol-Hong Cheon
DOI:10.1021/acs.orglett.0c01428
日期:2020.6.19
naphthyl pinacol boronate and an aryl iodide, bearing (S)-2-aminopropyl group at the ortho-position using the existing central chirality as an atroposelectivity-controlling group, provided the desired biaryl product with high atroposelectivity, without the use of an external chiral source. From the resulting biaryl product, several naphthylisoquinoline alkaloids were prepared via the stereoselective formation
我们描述了萘基异喹啉生物碱的不对称总合成。使用现有的中心手性作为阻转性选择性控制基团,在萘甲酸萘哪醇硼酸酯与在正位置带有(S)-2-氨基丙基的芳基碘化物之间进行阻转性联芳基偶合反应,可提供所需的具有高阻转性的联芳基产物,而无需使用外部手性来源。由所得的联芳基产物,通过具有适当氧化态和立体化学的异喹啉骨架的立体选择形成,制备了几种萘基异喹啉生物碱。