Oxidative Carbon–Carbon Bond Cleavage Is a Key Step in Spiroacetal Biosynthesis in the Fruit Fly <i>Bactrocera cacuminata</i>
作者:Arti A. Singh、Jessica A. Rowley、Brett D. Schwartz、William Kitching、James J. De Voss
DOI:10.1021/jo500791y
日期:2014.9.5
The early steps of spiroacetal biosynthesis in the fruit fly Bactrocera cacuminata (Solanum fly) have been investigated using a series of deuterium-labeled, oxygenated fatty acid like compounds. These potential spiroacetal precursors were administered to male flies, and their volatile emissions were analyzed for specific deuterium incorporation by GC/MS. This has allowed the order of early oxidative
果蝇Bactrocera cacuminata中螺缩醛生物合成的早期步骤(Solanum fly)已使用一系列氘标记的含氧脂肪酸样化合物进行了研究。将这些潜在的螺缩醛前体施用于雄蝇,并通过GC / MS分析它们的挥发物排放量,确定掺入特定的氘。这使得可以确定生物合成途径中早期氧化事件的顺序。连同已经建立的后续步骤,这些体内研究的结果从最初的代谢产物开始,就可以基本上完全圈定螺缩醛的生物合成途径。脂肪酸当量经过一系列酶介导的氧化反应,生成包括邻二醇的三加氧合脂肪酸样物质。最终螺缩醛为9单位。这是第一次在昆虫中报道这种氧化转化。最后的羟基化步骤之后是自发的螺环化。这种独特的途径进一步增加了螺缩醛生物合成途径的复杂性和多样性。