Defuscin, a new phenolic ester from Dendrobium fuscescens: Conformation of shikimic acid☆
作者:Bani Talapatra、Asoke K. Das、Sunil K. Talapatra
DOI:10.1016/0031-9422(89)85065-4
日期:——
Abstract Defuscin, a newphenolicester shown to be n -triacontyl p -coumarate, and (−)-shikimic acid have been isolated from the whole plant of Dendrobiumfuscescens Griff. The 1 H NMR spectrum of shikimicacid is indicative of the weighted average of its two half-chair conformers, the one with 4-OH and 5-OH in equatorial orientations being the major contributor.