Synthesis and plant growth inhibitory activity of both enantiomers of pyricuol, a phytotoxin isolated from rice blast disease fungus Magnaporthe grisea
作者:Koji Tanaka、Yoko Nakamura、Ayaka Sasaki、Rumi Ueda、Yuji Suzuki、Shigefumi Kuwahara、Hiromasa Kiyota
DOI:10.1016/j.tet.2009.05.052
日期:2009.8
Both enantiomers and racemate of pyricuol, a phytotoxin isolated from the rice blast disease fungus, Magnaporthe grisea, have been synthesized by using Stille coupling and [2,3]-Wittig rearrangement reactions as the key steps. Both enantiomers induced dark necrotic lesions on rice leaves almost equally, but did not affect the growth of rice second leaf sheath and the germination of lettuce. Only natural
通过使用Stille偶联和[2,3] -Wittig重排反应作为关键步骤,合成了稻瘟病真菌霉菌Magnaporthe grisea分离出的一种植物毒素–吡啶酚的对映异构体和外消旋体。两种对映异构体几乎均等地诱导了水稻叶片上的黑暗坏死损伤,但并未影响水稻第二叶片鞘的生长和生菜的发芽。只有天然对映异构体才能促进大米和生菜的根部生长。