Design, synthesis and biological evaluation of novel diazaspiro[4.5]decan-1-one derivatives as potential chitin synthase inhibitors and antifungal agents
作者:Bing Li、Kaiyuan Wang、Rui Zhang、Baihui Li、Yangli Shen、Qinggang Ji
DOI:10.1016/j.ejmech.2019.111669
日期:2019.11
A series of 2,8-diazaspiro[4.5]decan-1-one derivatives were designed, synthesized and screened for their inhibition activities against chitin synthase (CHS) and antimicrobial activities in vitro. The biological assays revealed that compounds 4a, 4e, 4h, 4j, 4o, 4q and 4r exhibited moderated to excellent potency against CHS with IC50 values ranging from 0.12 to 0.29 mM. Compounds 4e, 4j with IC50 value
设计,合成和筛选了一系列的2,8-二氮杂螺[4.5] decan-1-one衍生物对几丁质合酶(CHS)的抑制活性和体外抗菌活性。生物学分析表明,化合物4a,4e,4h,4j,4o,4q和4r表现出对CHS的中度至极强效价,IC50值为0.12至0.29 mM。化合物4e,4j的IC50值分别为0.13 mM和0.12 mM,在这些化合物中显示出优异的抑制能力,类似于多恶心素B的IC50值为0.08 mM。同时,抗真菌活性的筛选表明化合物4j和4r具有相同的抑制烟曲霉生长的效力,MIC值为0.08mmol / L。化合物4d对白色念珠菌(ATCC 90023)表现出优异的活性,MIC值为0.04 mmol / L,优于氟康唑(0.104 mmol / L)和多恶菌素B(0.129 mmol / L)。抗菌测定的结果表明,这些化合物对包括3种革兰氏阳性菌和3种革兰氏阴性菌在内的选定菌株没