作者:Søren Damtoft、Søren Rosendal Jensen、Bent Juhl Nielsen、Jesper Thorsen
DOI:10.1016/s0031-9422(00)97538-1
日期:1992.1
8-epi-iridodial, 8-epi-iridotrial and their glucosides were fed to Hebenstretia dentata. The aglucones were better precursors than their glucosides of ipolamiide and lamiide, the iridoid glucosides of the plant. A feeding experiment with 13C-labelled 10-hydroxy-geraniol showed that C-3 and C-11 are equivalent during biosynthesis of the iridoid glucosides and, thus, glucosidation must take place after
摘要 将氘标记的8-epi-iridodial、8-epi-iridotrial及其糖苷样品喂给Hebenstretia dentata。配基是比它们的 ipolamiide 和 lamiide(植物的环烯醚萜苷)的葡萄糖苷更好的前体。用 13C 标记的 10-羟基-香叶醇喂养实验表明,在环烯醚萜苷生物合成过程中,C-3 和 C-11 是等效的,因此,必须在形成 8-epi-iriidotrial 后进行糖苷化。加入 8-epi-deoxyloganic 酸后对次要代谢物的分离表明,该化合物的路线通过在 C-8 处氧化然后酯化进行,而在 C-5 处氧化是最后一步。