Design, synthesis, and biological evaluation of N-(3-cyano-1H-indol-5/6-yl)-6-oxo-1,6-dihydropyrimidine-4-carboxamides and 5-(6-oxo-1,6-dihydropyrimidin-2-yl)-1H-indole-3-carbonitriles as novel xanthine oxidase inhibitors
作者:Bing Zhang、Yulin Duan、Yuwei Yang、Qing Mao、Fengwei Lin、Jun Gao、Xiwen Dai、Peng Zhang、Qiuhua Li、Jinxin Li、Ronghua Dai、Shaojie Wang
DOI:10.1016/j.ejmech.2021.113928
日期:2022.1
Xanthine oxidase (XO) has been an important target for the treatment of hyperuricemia and gout. The analysis of potential interactions of pyrimidinone and 3-cyano indole pharmacophores present in the corresponding reported XO inhibitors with parts of the XO active pocket indicated that they both can be used as effective fragments for the fragment-based design of nonpurine XO inhibitors. In this paper
黄嘌呤氧化酶(XO)一直是治疗高尿酸血症和痛风的重要靶点。对相应报道的 XO 抑制剂中存在的嘧啶酮和 3-氰基吲哚药效团与部分 XO 活性口袋的潜在相互作用的分析表明,它们都可以用作基于片段的非嘌呤 XO 抑制剂设计的有效片段。在本文中,我们采用基于片段的药物设计策略,通过酰胺键将两个片段连接起来,设计出 1 型化合物13a–13w、14c、14d、14f、14g、14j、14k和15g。复方13g显示出明显的 XO 抑制效力 (IC 50 = 0.16 μM),比别嘌醇 (IC 50 = 8.37 μM) 高 52.3 倍。为了比较,还设计了 2 型化合物 5-(6-oxo-1,6-dihydropyrimidin-2-yl)-1 H -indole-3-carbonitriles ( 25c – 25g ) 通过直接用单键连接两个片段. 结果表明,后者系列的化合物25c显示出最好的抑制效力(IC