Stereoselective Synthesis of<i>cis</i>-1,3-Dimethyltetrahydroisoquinolines: Formal Synthesis of Naphthylisoquinoline Alkaloids
作者:Mercedes Amat、Fabiana Subrizi、Viviane Elias、Núria Llor、Elies Molins、Joan Bosch
DOI:10.1002/ejoc.201200798
日期:2012.10
3-dimethyltetrahydroisoquinolines, synthetic precursors of naphthylisoquinoline alkaloids, has been developed. The synthesis relies on the use of a phenylglycinol-derived lactam as the starting enantiopure scaffold. After stereoselective opening of the oxazolidine ring, the C-3 methyl substituent was installed, taking advantage of the lactam carbonyl group by stereoselective hydrogenation of an α-methylenamide generated
已开发出合成对映体纯 cis-1,3-二甲基四氢异喹啉(萘基异喹啉生物碱的合成前体)的合成路线。该合成依赖于使用苯基甘氨醇衍生的内酰胺作为起始对映体纯支架。在恶唑烷环立体选择性打开后,安装 C-3 甲基取代基,利用内酰胺羰基通过立体选择性氢化通过三氟甲磺酸乙烯酯生成的 α-亚甲基酰胺。