The discovery of new plant activators and scaffolds with potential induced systemic resistance: from jasmonic acid to pyrrolidone
作者:Kang Chang、Yanxia Shi、Jianqin Chen、Zenghui He、Zheng Xu、Zhenjiang Zhao、Weiping Zhu、Honglin Li、Yufang Xu、BaoJu Li、Xuhong Qian
DOI:10.1039/c6md00261g
日期:——
the JA pathway was rarely investigated for new plant activators. In this study, starting from JA and its analogs, based on the molecular three-dimensional shape and pharmacophore similarity comparison (SHAFTS), a new lead compound, pyrrolidone, as a new scaffold of plant activators was predicted and a series of 1-phenyl-5-pyrrolidone-3-carboxylic acid derivatives were designed and synthesized. The
由于病原体,昆虫和某些特定微生物的感染,或者经过特定化学物质的处理,植物会发展出多方面的系统抗性。1其中,系统性获得性抵抗力(SAR)和诱导性系统抵抗力(ISR)2是两个最重要的类型。为了激活它们,已经基于SA途径开发了大量化学诱导剂。但是,对于新的植物激活剂,很少研究JA途径。在这项研究中,从JA及其类似物出发,基于分子三维形状和药效基团相似性比较(SHAFTS),预测了一种新的先导化合物吡咯烷酮,它将作为一种植物激活剂的新支架,并形成一系列1-苯基设计并合成了-5-吡咯烷酮-3-羧酸衍生物。对生物活性进行了评估,大多数化合物均显示出令人满意的活性。特别是化合物7-11在体外几乎没有显示 活性,但对被测疾病具有优异的疗效,并证实了虚拟筛选结果的预测,这促进了SHAFTS在农药开发中的应用。