Arylamino containing hydroxamic acids as potent urease inhibitors for the treatment of Helicobacter pylori infection
作者:Qi Liu、Wei-Kang Shi、Shen-Zhen Ren、Wei-Wei Ni、Wei-Yi Li、Hui-Min Chen、Pei Liu、Jing Yuan、Xiao-Su He、Jia-Jia Liu、Peng Cao、Pu-Zhen Yang、Zhu-Ping Xiao、Hai-Liang Zhu
DOI:10.1016/j.ejmech.2018.06.065
日期:2018.8
evaluated as anti-virulence agents for the treatment of gastritis and gastric ulcer caused by Helicobacter pylori. In vitro enzyme-based screen together with in vivo assays and structure−activity relationship (SAR) studies led to the discovery of three potent urease inhibitors 3-(3,5-dichlorophenylamino)N-hydroxypropanamide (3a), 3-(2-chlorophenylamino)N-hydroxypropanamide (3d) and 3-(2,4-dichlorophenylam
设计,合成和评估了一系列新型的含苯胺的异羟肟酸,作为抗毒剂,用于治疗幽门螺杆菌引起的胃炎和胃溃疡。基于体外酶的筛选以及体内测定和结构活性关系(SAR)研究导致发现了三种有效的脲酶抑制剂3-(3,5-二氯苯基氨基)N-羟基丙酰胺(3a),3-(2-氯苯基氨基)N-羟基丙酰胺(3d)和3-(2,4-二氯苯基氨基)N-羟基丙酰胺(3n)。化合物3a,3d和3n表现出优异的脲酶抑制作用,IC 50值为0.043±0.005、0.055±0.008和0.018±0.002μM,并且在32 mg / kg bid剂量下显着抑制了胃炎的发展,根除幽门螺杆菌的比率达到92.3、84.6和100%,分别。初步安全性研究(对小鼠的急性毒性)显示,LD 50分别为2982.8、3349.4和3126.9 mg / kg的KM小鼠对3a,3d和3n的耐受性良好。总体而言,本研究中获得的数据表明3a,3d和3n,尤