and its 7-epimer were obtained, strongly implying that 7-ketologanic acid is an intermediate in the biosynthesis of oleosides. The incorporations were measured by 2 H NMR in several isolated secoiridoids all belonging to the oleosides. In addition, the content of acidic iridoids (both carbocyclic and seco-type) in two additional species of Oleaceae, namely Ligustrum ovalifolium and Phillyrea latifolia
摘要 油苷类糖苷(油苷)的
生物合成已在木犀科的两种植物中进行了研究,即精益白蜡和丁香。制备了脱氧木酸、8-表-脱氧木酸、7-表-脱氧木酸和
木糖酸的
氘代类似物。在施用上述化合物时,获得了高掺入的脱氧原酸以及原木酸及其 7-差向异构体,这强烈暗示 7-酮基酸是油苷
生物合成中的中间体。 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 通过 2 H NMR 测量了几种分离的类环烯醚萜烯中的掺入量,这些类环烯脂酸酯均属于油苷。此外,还检测了另外两种木犀科植物 Ligustrum Ollifolium 和 Phillyrea