Synthesis of (−)-Deoxypukalide, the Enantiomer of a Degradation Product of the Furanocembranolide Pukalide
作者:James A. Marshall、Elva A. Van Devender
DOI:10.1021/jo016048s
日期:2001.11.1
A convergent stereoselective synthesis of (-)-deoxypukalide is described. This substance has not yet been found in Nature but is obtained through deoxygenation of pukalide, the first naturally occurring furanocembrane to be structurally elucidated. The route features a new intraannular furan synthesis that entails treatment of a 4-oxopropargylic beta-keto ester with silica gel. The product of this