Synthesis and Use of Stereospecifically Deuterated Analogues of Palmitic Acid To Investigate the Stereochemical Course of the Δ<sup>11</sup> Desaturase of the Processionary Moth
作者:José-Luis Abad、Gemma Villorbina、Gemma Fabriàs、Francisco Camps
DOI:10.1021/jo049320h
日期:2004.10.1
that, after several sequential reactions from palmitic acid, catalyze the formation of a unique enyne fatty acid, which is the immediate sex pheromone precursor. In this article, we describe the synthesis of different stereospecifically deuterium-labeled and isotopically tagged palmitic acid probes needed to decipher the stereochemical course of the T. pityocampa Δ11 desaturase. The synthesis of probes
丘脑比目鱼信息素腺体含有去饱和酶,经过棕榈酸的几次连续反应后,该去饱和酶催化独特的烯炔脂肪酸的形成,这是直接的性信息素前体。在本文中,我们描述了破译的立体化学过程需要不同的立体特异性氘标记和同位素标记的棕榈酸探针的合成T. pityocampa Δ 11去饱和酶。探针的合成已通过化学酶途径进行,其中关键步骤是仲炔丙醇的外消旋混合物的动力学脂肪酶催化拆分。炔键的存在简化了拆分醇的绝对构型测定。此外,它允许通过氘引入同位素标记。通过使用如此制备的探针,实验证据提出了Δ 11的去饱和酶T. pityocampa变换棕榈酸成(ż)通过除去-11十六碳烯酸亲- ([R )从两个C11和C12α-氢原子。