Synthesis and Biological Activities of 3-Substituted Analogues of Tenuazonic Acid
作者:Yu-Xiu Liu、Zhi-Peng Cui、Hua-Ping Zhao、Yong-Hong Li、Yu-Cheng Gu、Qing-Min Wang
DOI:10.1002/jhet.1878
日期:2014.8
A series of tenuazonic acid analogues in which the acetyl group was replaced with electron-withdrawing substituents have been synthesized with the aim of obtaining molecules with various bioactivities. Substituents such as cyano, sulfonyl, and amido were introduced at the 3-position of the pyrrolidine-2,4-dione nucleus of tenuazonic acid. 3-Cyano and sulfonyl pyrrolidine-2,4-dione compounds ( and )
为了获得具有各种生物活性的分子,已经合成了一系列的Tenaazonic酸类似物,其中的乙酰基被吸电子取代基取代。将取代基(如氰基,磺酰基和酰胺基)引入到Tenuazonic酸的吡咯烷-2,4-二酮核的3位上。3-氰基和磺酰基吡咯烷-2,4-二酮化合物( 和 )是通过Dieckmann环化反应制备的,是关键步骤。3-氨基吡咯烷-2,4-二酮化合物(通过微波辅助的酰胺化反应,由相应的3-羧酸酯衍生物制备)。对目标化合物进行了评估;它们的除草,杀真菌和杀虫活性,初步的生物测定数据表明,某些3-cyanopyrrolidine-2,4-diones 具有良好的杀虫活性,而某些3-酰胺基化合物 在20 mg / L的浓度下,对腐烂腐霉表现出中等至强的杀菌活性。