Design, synthesis and biological evaluation of N-(3-(1H-tetrazol-1-yl)phenyl)isonicotinamide derivatives as novel xanthine oxidase inhibitors
作者:Ting-jian Zhang、Yi Zhang、Shun Tu、Yu-hang Wu、Zhen-hao Zhang、Fan-hao Meng
DOI:10.1016/j.ejmech.2019.111717
日期:2019.12
phenyl to serve as an H-bond acceptor and obtained a series of N-(3-(1H-tetrazol-1-yl)phenyl)isonicotinamide derivatives (2a-t and 6-8). Besides, to investigate the influence of the amide-reversal, some N-(pyridin-4-yl)-3-(1H-tetrazol-1-yl)benzamide derivatives (3c, 3e, 3i, 3k and 3u) were also synthesized and evaluated. Biological evaluation and structure-activity relationship analysis demonstrated that
在我们先前的研究中,我们报道了一系列N-苯基异烟酰胺衍生物作为新型黄嘌呤氧化酶(XO)抑制剂,并确定了N-(3-氰基-4-((2-氰基苄氧基)氧基)苯基)异烟酰胺(化合物1)是最有效的一种,IC50值为0.312μM。为了进一步优化结构并提高效能,进行了基于结构的药物设计(SBDD)策略,以构建小分子与XO的Asn768残基之间缺失的H键。我们在苯基的3'位引入一个四唑部分作为H键受体,并获得了一系列N-(3-(1H-四唑-1-基)苯基)异烟酰胺衍生物(2a-t和6-8)。此外,为了研究酰胺逆转的影响,还合成了一些N-(吡啶-4-基)-3-(1H-四唑-1-基)苯甲酰胺衍生物(3c,3e,3i,3k和3u)。并进行评估。生物学评估和结构-活性关系分析表明,3'-(1H-四唑-1-基)部分是N-苯基异烟酰胺骨架的极好片段。为了效力,欢迎在4′-位连接的取代的苄氧基,特别是间-氰基苄氧基(例如