The Pseudotransannular Ring Opening of 1‐Aminocyclohept‐4‐ene‐derived Epoxides in the Synthesis of Tropane Alkaloids: Total Synthesis of (±)‐Ferrugine
作者:Sandra Rodriguez、Uxue Uria、Efraim Reyes、Liher Prieto、Marta Rodríguez‐Rodríguez、Tomás Tejero、Pedro Merino、Jose L. Vicario
DOI:10.1002/ejoc.202100332
日期:2021.5.26
ferrugine has been accomplished in 8 steps and 21 % overall yield starting from the epoxide derived from 3-aminocycloheptene. Attempts to obtain this natural product as enantiopure material from the enantioenriched 2-tropanol derivative failed due to competitive racemization during the manipulation of the OH moiety. This racemization process has been studied using both experimental and computational
从3-氨基环庚烯衍生的环氧化物开始,以8个步骤完成了总合成,总产率为21%。由于在OH部分的操作中竞争性外消旋作用,试图从对映体富集的2-对映体醇衍生物中获得作为对映体纯物质的天然产物的尝试失败了。已经使用实验和计算方法研究了这种消旋过程。