Design, synthesis and biological evaluation of novel diazaspirodecanone derivatives containing piperidine-4-carboxamide as chitin synthase inhibitors and antifungal agents
作者:Qinggang Ji、Bing Li、Yiwen Chu、Hu Wu、Chuanbiao Du、Yajie Xu、Yangli Shen、Junfeng Deng
DOI:10.1016/j.bioorg.2021.105108
日期:2021.9
A series of novel 2-oxo-(1-oxo-2,8-diazaspiro[4.5]decane-8-yl)ethylpiperidine carboxamide derivatives were designed, synthesized and characterized by 1H NMR, 13C NMR and HRMS spectroscopy. All eighteen newly prepared compounds were evaluated for their inhibition against chitin synthase (CHS) and antifungal activities in vitro. The enzyme assay revealed that compound 5h showed excellent inhibitory activity
设计、合成了一系列新型2-oxo-(1-oxo-2,8-diazaspiro[4.5]decane-8-yl)乙基哌啶甲酰胺衍生物,并通过1 H NMR、13 C NMR和HRMS光谱对其进行了表征。评估了所有 18 种新制备的化合物对几丁质合成酶 (CHS) 的抑制作用和体外抗真菌活性。酶法分析表明,化合物5h对CHS显示出优异的抑制活性,IC 50值为0.10 mM,化合物5b、5d和5q对几丁质合酶显示出良好的抑制作用,IC 50值分别为0.13 mM、0.18 mM和0.15 mM , 而 IC 50ployoxin B 的值为 0.08 mM。同时,这些化合物中的其他化合物对几丁质合酶表现出中等的抑制效力。抗真菌试验表明,与对照药物氟康唑和多氧菌素 B 相比,化合物5h对这些测试菌株(包括白色念珠菌、烟曲霉、新型念珠菌和黄曲霉)具有优异的抗真菌活性。其优异的抗真菌活性与其优异的几