Rapid Syntheses of (−)‐FR901483 and (+)‐TAN1251C Enabled by Complexity‐Generating Photocatalytic Olefin Hydroaminoalkylation
作者:Dominik Reich、Aaron Trowbridge、Matthew J. Gaunt
DOI:10.1002/anie.201912010
日期:2020.2.3
We report a common strategy to facilitate the syntheses of the polycyclic alkaloids (-)-FR901483 (1) and (+)-TAN1251C (2). A divergent synthetic strategy provides access to both natural products through a pivotal spirolactam intermediate (3), which can be accessed on a gram-scale. A photocatalytic olefin hydroaminoalkylation brings together three readily available building blocks and forges the majority
我们报告了促进多环生物碱(-)-FR901483(1)和(+)-TAN1251C(2)合成的通用策略。多样化的合成策略可通过关键的螺内酰胺中间体(3)提供两种天然产物的访问途径,该中间体可以以克为单位进行访问。光催化烯烃加氢氨基烷基化可将三个容易获得的结构单元结合在一起,并在一次操作中锻造1和2中存在的大部分碳骨架,从而简化了总合成过程。产生复杂性的光催化过程还提供了对新型非外消旋螺内酰胺支架的直接访问,这可能是早期药物发现计划感兴趣的。