Stimulation of Orobanche ramosa seed germination by fusicoccin derivatives: A structure–activity relationship study
作者:Antonio Evidente、Anna Andolfi、Michele Fiore、Angela Boari、Maurizio Vurro
DOI:10.1016/j.phytochem.2005.10.010
日期:2006.1
structure-activity relationship study was conducted assaying 25 natural analogues and derivatives of fusicoccin (FC), and cotylenol, the aglycone of cotylenins, for their ability to stimulate the seed germination of the parasitic species Orobanche ramosa. Some of the compounds tested proved to be highly active, being 8,9-isopropylidene of the corresponding FC aglycone and the dideacetyl derivative the most active
进行了构效关系研究,分析了 fusicoccin (FC) 和子叶酚(子叶素的苷元)的 25 种天然类似物和衍生物,以观察它们刺激寄生物种 Orobanche ramosa 种子萌发的能力。一些测试的化合物证明是高活性的,是相应 FC 苷元的 8,9-异亚丙基,而双乙酰衍生物是活性最高的 FC 衍生物。在两组葡萄糖苷和苷元(包括子叶酚)中,赋予活性的最重要的结构特征似乎是在 C-19 处存在伯羟基。此外,碳三环的官能团和构象被证明起着重要作用。FC 的双脱乙酰衍生物,以 FC 为起始原料,可容易、快速、高收率地获得,