Total Synthesis of (+)-Yohimbine via an Enantioselective Organocatalytic Pictet–Spengler Reaction
作者:Bart Herlé、Martin J. Wanner、Jan H. van Maarseveen、Henk Hiemstra
DOI:10.1021/jo201657n
日期:2011.11.4
Diels–Alder reaction of the type earlier reported by Jacobsen. These two key steps constitute the basis for a nine-step total synthesis of (+)-yohimbine from tryptamine. A similar asymmetric Pictet–Spengler reaction was applied to the synthesis of an intermediate in the recent total synthesis of corynantheidine by Sato.