作者:Masao Toyota、Hiroki Koyama、Masami Mizutani、Yoshinori Asakawa
DOI:10.1016/0031-9422(95)00798-9
日期:1996.3
constituents of liverworts, (−)-ent-spathulenol and (−)-ent-bicyclogermacrene were frequently found in many species. While studying the liverwort Dicranolejeunea yoshinagana, it was observed by chance that (−)-ent-bicyclogermacrene is easily converted to (−)-ent-spathulenol. A pure sample of (−)-ent-bicyclogermacrene was allowed to stand at room temperature and was found to have changed completely to (−)-ent-spathulenol
摘要 在地草成分研究中,(-)-ent-spathulenol 和(-)-ent-bicyclogermacrene 在许多物种中经常被发现。在研究地草 Dicranolejeunea yoshinagana 时,偶然观察到 (-)-ent-bicyclogermacrene 很容易转化为 (-)-ent-spathulenol。(-)-ent-bicyclogermacrene 的纯样品在室温下静置,发现已完全变成 (-)-ent-spathulenol。转化是定量完成的,(-)-ent-spathulenol 的对映体纯度与 (-)-ent-bicyclogermacrene 的对映体纯度相当。这种转变也发生在地苔的提取过程中。