Identification and Synthesis of Macrolide Pheromones of the Grain Beetle<i>Oryzaephilus Surinamensis</i>and the Frog<i>Spinomantis Aglavei</i>
作者:Susann Hötling、Birte Haberlag、Matthias Tamm、Jana Collatz、Patrick Mack、Johannes L. M. Steidle、Miguel Vences、Stefan Schulz
DOI:10.1002/chem.201304414
日期:2014.3.10
identified as the new natural product (5Z,8Z,12R)‐tetradeca‐5,8‐dien‐12‐olide, cucujolide X (8). Furthermore, the route also allowed the synthesis of cucujolide V in good yield. The natural products were identified by the synthesis of enantiomerically pure or enriched material and gas chromatography on chiral phases. The new macrolide (R)‐8 proved to be biologically active, attracting female O. surinamensis
大环内酯类内酯,即衍生自不饱和脂肪酸的cucujolides,是瓜类甲虫的聚集信息素。三十年前,Oehlschlarger等。表明,(3 Ž,6 Ž) -十二-3,6-二烯-11-内酯(4)和相应的12内酯(7)吸引锯齿状晶甲虫锯谷盗,而(5 Ž,8 Z, 13 [R)-tetradeca -5,8-二烯-13-内酯(5)协同增加的响应。这种甲虫的蛀屑是其寄生的吸引力Cephalonomia跗,有可能用于害虫防治。甲GC /吸引力虫粪的MS分析显示存在5,具有未知异构体一起。Cucujolide五获得暂定还确定在股骨腺体,信息素释放的结构,的马达加斯加mantelline青蛙Spinomantis aglavei。因此,开发了一种新的合成双不饱和大环内酯类化合物的方法,该化合物允许侧链的柔性连接。一种直接的方法来获得ž 配置大环内酯类包括闭环复分解炔(RCAM),接着林德拉催化氢化。这种方