Biosynthesis of Strained Piperazine Alkaloids: Uncovering the Concise Pathway of Herquline A
作者:Xia Yu、Fang Liu、Yi Zou、Man-Cheng Tang、Leibniz Hang、K. N. Houk、Yi Tang
DOI:10.1021/jacs.6b09464
日期:2016.10.19
diverse biological activities. Uncovering these biosynthetic pathways may lead to biomimetic strategies for organic synthesis of such compounds. In this work, we elucidated the concise biosynthetic pathway of herquline A, a highly strained and reduced fungal piperazine alkaloid. The pathway builds on a nonribosomal peptide synthetase derived dityrosine piperazine intermediate. Following enzymatic reduction
大自然合成了许多具有不同生物活性的天然产物。揭示这些生物合成途径可能会导致此类化合物有机合成的仿生策略。在这项工作中,我们阐明了 Herquline A 的简洁生物合成途径,这是一种高度紧张和还原的真菌哌嗪生物碱。该途径建立在非核糖体肽合成酶衍生的二酪氨酸哌嗪中间体上。在 P450 交联的二环己二烯酮的酶促还原之后,哌嗪的 N-甲基化作为引发一连串立体选择性和非酶促转化的触发器。途径中关键步骤的计算分析使观察到的反应性合理化。