Biosynthetic relationship of aryltetralin lactone lignans to dibenzylbutyrolactone lignans
作者:Widad M. Kamil、Paul M. Dewick
DOI:10.1016/0031-9422(86)80072-3
日期:1986.1
Abstract Feeding experiments in Podophyllum hexandrum plants have shown that the dibenzylbutyrolactone lignan yatein is a satisfactory precursor of the aryltetralin lignan podophyllotoxin. The corresponding cis isomer of yatein was also incorporated, but to a lesser extent, and probably via yatein. Podorhizol, epipodorhizol and anhydropodorhizol were not incorporated into podophyllotoxin, despite the
摘要 鬼臼属植物的取食实验表明,二苄基丁内酯木脂素叶黄素是一种令人满意的芳基四林木脂素鬼臼毒素前体。yatein 的相应顺式异构体也被并入,但程度较小,可能是通过 yatein。尽管已证明在 P. hexandrum 植物中同时存在鬼臼根和脱水鬼臼根,但鬼臼根、表鬼臼根和脱水鬼臼根并未掺入鬼臼毒素中。提出了通过关键的醌甲基中间体从 yatein 到鬼臼毒素的生物合成序列。这种中间体可能也是香根醇和脱水香根醇的前体。Matairesinol 被提议作为鬼臼中芳基四氢化萘木脂素的三甲氧基和羟基二甲氧基系列的分支点化合物。