Structure and Synthesis of Miyaginin, a<i>p</i>-Allylphenyl Glycoside from<i>Lespedeza thunbergii</i>forma<i>macrantha</i>
作者:Makoto Ojika、Hiroki Kuyama、Haruki Niwa、Kiyoyuki Yamada
DOI:10.1246/bcsj.57.2893
日期:1984.10
The structure of miyaginin previously reported as p-vinylphenyl O-d-xylosyl-(1→6)-d-glucoside without stereochemical assignment of two glycosidic linkages was reinvestigated by spectral and chemical means and shown to be revised as p-allylphenyl O-β-d-xylopyranosyl-(1→6)-β-d-glucopyranoside (p-allylphenyl β-primeveroside). In order to confirm the revised structure, an unambiguous synthesis of miyaginin was performed.
早前报道的miyaginin结构为对乙烯基苯基 O-β-木糖基-(1→6)-β-葡萄糖苷,但未指明两个糖苷键的立体化学配置。通过光谱和化学方法重新研究后,发现其结构应修正为对丙烯基苯基 O-β-d-木吡喃糖基-(1→6)-β-d-葡吡喃糖苷(对丙烯基苯基 β-衍生物)。为了确认修正后的结构,进行了明确的miyaginin合成。