Efficient and highly enantioselective formation of the all-carbon quaternary stereocentre of lyngbyatoxin A
作者:Paulo Vital、David Tanner
DOI:10.1039/b612578f
日期:——
Indole 25, an advanced intermediate in a projected enantioselective total synthesis of lyngbyatoxin A 1, was prepared from allylic alcohol 11 in 9 steps and >95% ee, key transformations being the enantiospecific rearrangement of vinyl epoxide 14 and the Hemetsberger–Knittel reaction of azide 24.
吲哚 25 是 Lyngbyatoxin A 1 对映体选择性全合成计划中的高级中间体,由烯丙基醇 11 经过 9 个步骤制备而成,ee >95%,其中的关键转化是乙烯基环氧化物 14 的对映体特异性重排和叠氮化物 24 的 Hemetsberger-Knittel 反应。