作者:Masahiko Yoshimura、Michael Dieckmann、Pierre‐Yves Dakas、Raymonde Fonné‐Pfister、Claudio Screpanti、Katrin Hermann、Stefano Rendine、Pierre Quinodoz、Beyza Horoz、Saron Catak、Alain De Mesmaeker
DOI:10.1002/hlca.202000017
日期:2020.4
well as in planta, evaluating its biological activities has been hampered by its low natural abundance and its relative chemical instability. Herein, we present the total synthesis of zealactone 1a/b based on our studies employing a [2+2]‐cycloaddition strategy and a chemoselective Baeyer‐Villiger oxidation to forge the γ‐butyrolactone fragment. Furthermore, we disclose the biological activities of zealactone
内酯是植物激素,在植物生长发育中起关键作用,并在可持续农业中有潜在的应用。最近,从玉米根分泌物中鉴定出玉米甾酮1a / b是主要的硬皮内酯。尽管玉米黄酮是影响根际和植物中信号转导的有前途的分子,但其生物活性的评估因其低天然丰度和相对化学不稳定而受到阻碍。在此,我们根据[2 + 2]-环加成策略和化学选择性Baeyer-Villiger氧化法锻造γ的研究结果,给出了玉米黄酮1a / b的总合成丁内酯片段。此外,与相关的合成类似物相比,我们公开了玉米蛋白内酯1a / b在玉米和土壤中的生物活性。