(4<i>Z</i>)-Lachnophyllum Lactone, a Metabolite with Phytotoxic and Antifungal Activity against Pests Affecting Mediterranean Agriculture: A New Versatile and Easy Scalable Parallel Synthesis
作者:Gabriele Soriano、Davide Arnodo、Marco Masi、Mónica Fernández-Aparicio、Blanca B. Landa、Concepción Olivares-García、Alessio Cimmino、Cristina Prandi
DOI:10.1021/acs.jafc.3c07130
日期:2024.3.6
Furthermore, all of the compounds showed antifungal activity at 1 mM reducing the mycelial growth of the olive pathogen Verticillium dahliae. The design and implementation of scalable and modulable total synthesis on a gram scale of acetylenic furanones allow the production of a large amount of these natural products, overcoming the limit imposed by isolation from natural sources. The results of the present
首次报道了克级的 (4 Z )-Lachnophyllum 内酯 ( 1 ) 的全合成和可调节合成方法。目前的工作从设计目标化合物的逆合成途径开始,关键步骤是 Pd-Cu 双金属级联交叉偶联环化。 ( 4Z )-Lachnophyllumlactone( 1 ) 是一种乙炔呋喃酮,之前从自养杂草Conyza bonariensis的有机提取物中分离出少量。在幼苗生长生物测定中针对茎寄生杂草菟丝子进行测试,与对照相比,( 4Z )-lachnophyllum内酯( 1 )显示出几乎85%的抑制活性,高达0.3mM。在相同浓度下,该化合物对根寄生杂草列当和山毛叶的根生长抑制活性分别高于70%和40%。令人惊讶的是,该化合物对C. bonariensis种子萌发也表现出高达 0.1 mM 的高抑制百分比。这种多功能合成策略还用于获得另外两种天然类似物,即 (4 E )-lachnophyllum