Facile carbohydrate-based stereocontrolled divergent synthesis of (+)-pericosines A and B
作者:Subhankar Tripathi、Ajam Chand Shaikh、Chinpiao Chen
DOI:10.1039/c1ob06383a
日期:——
An isomer-divergent synthesis of naturally occurring pericosines A and B is described starting from a known D-ribose derived ene-diol in 35% and 41% overall yields respectively of which the latter is the best synthetic method reported for pericosine B. The key features of this synthesis include the stereoselective NHK vinylation of the terminal aldehyde to the versatile diolefinic chiral intermediate and elegant conversions of the same to the corresponding final products via RCM (Ring Closing Metathesis).
该合成方法的主要特点包括通过 NHK 乙烯基化将末端醛转化为多用途二烯烃手性中间体,并通过 RCM(闭环合成)将二烯烃手性中间体优雅地转化为相应的最终产物。