Concise Total Synthesis of (±)-Pseudotabersonine via Double Ring-Closing Metathesis Strategy
作者:Bo Cheng、James D. Sunderhaus、Stephen F. Martin
DOI:10.1021/ol101356u
日期:2010.8.20
A concise synthesis of (±)-pseudotabersonine from commercially available 1-(phenylsulfonyl)-3-indolecarboxaldehyde has been accomplished. This synthesis features the convergent assembly of a key intermediate via a stepwise variant of a Mannich-type multicomponent coupling process, a double ring-closing metathesis, and a one-pot deprotection/cyclization reaction.
(±)-pseudotabersonine 从市售 1-(苯磺酰基)-3-indolecarboxaldehyde 的简明合成已经完成。该合成的特点是通过曼尼希型多组分偶联过程的逐步变体、双闭环复分解和一锅脱保护/环化反应来聚合组装关键中间体。