1,2-苯并异噻唑-3-酮衍生物的合成及活性研究
Synthesis and Activity Study of 1,2-Benzisothiazol-3-one Derivatives
王利敏 1宋晓宇 2程森祥 1陈彤 1崔得运1
作者信息
- 1. 河南省科学院高新技术研究中心 郑州 450002
- 2. 浙江省药品检查中心 杭州 310020
- 折叠
摘要
1,2-苯并异噻唑-3-酮(BIT)具有一定的抗菌活性,但其抗菌谱相对较窄.为寻找新的抗菌药物,以BIT为先导化合物,采用BIT-醛-醇三分子"一锅"反应,高效地合成了 17个N-取代烷氧基甲基-1,2-苯并异噻唑-3-酮衍生物.采用密度泛函理论(DFT)进行了反应机理的研究.测定了对细菌、真菌和农作物病原真菌的抑菌活性,结果表明化合物对金黄色葡萄球菌和白色念珠菌均表现出较强的抑制作用,多数化合物的最低抑菌浓度(MIC)在1～4 mg/L之间.化合物BIT-5、BIT-9、BIT-10以及BIT-11对所测试的多种细菌、真菌均具有较高的抑制活性,尤其是对农作物病原真菌核盘菌、假禾谷镰孢菌、禾谷镰孢菌和小麦全蚀病菌表现出很高的抑菌活性(MIC=5～10mg/L),具有进一步的研究价值.
Abstract
1,2-Benzisothiazol-3-one(BIT)exhibits limited antibacterial activity,prompting the search for new antibacterial drugs.In this study,BIT was used as the starting compound to synthesize 17 new N-substituted alkoxymethylbenzoisothia-zolone derivatives through one-pot reaction method involving BIT,aldehyde,and alcohol.The reaction pathways were inves-tigated using density functional theory(DFT),and the inhibitory activity of the new compounds against bacteria,fungi,and crop pathogens was evaluated.The results demonstrated that these compounds displayed strong inhibitory effects on Staphy-lococcus aureus and Candida albicans,with most compounds exhibiting minimum inhibitory concentrations(MIC)ranging from 1 mg/L to 4 mg/L.Compounds BIT-5,BIT-9,BIT-10,and BIT-11 exhibited high inhibitory activity against various bac-teria and fungi tested,particularly against agricultural crop disease fungi such as Sclerotinia sclerotiorum,Fusarium pseudograminearum,Fusarium graminearum,and Gaeumannomyces gramims,with MIC values in the range of 5～10 mg/L,which has further research value.
关键词
1,2-苯并异噻唑-3-酮/衍生物/抗菌活性Key words
1,2-benzisothiazolin-3-one/derivative/antibacterial activity引用本文复制引用
基金项目
河南省科学院博士基金(241802037)
出版年
2024
NETL
NSTL
万方数据