作者:Oleksandr L. Kobzar、Alona V. Tatarchuk、Galyna P. Mrug、Svitlana P. Bondarenko、Bohdan A. Demydchuk、Mykhaylo S. Frasinyuk、Andriy I. Vovk
DOI:10.1007/s00044-023-03109-8
日期:2023.8
9-homoisoflavonoid and flavone scaffolds also showed micromolar activity towards xanthine oxidase. At the same time, dihydrochalcone and Δ2,3-homoisoflavonoid carboxylic acids as well as their oxa-analogues were more than two orders of magnitude less effective inhibitors. Kinetic and molecular docking studies indicated that the carboxylated chalcones and Δ3,9-homoisoflavonoids are mixed-type inhibitors
合成了羧基查尔酮和其他相关黄酮类化合物,并作为黄嘌呤氧化酶抑制剂进行了评估,黄嘌呤氧化酶是用于治疗高尿酸血症、痛风和其他疾病的合成药物和草药的已知靶点。A 环上带有羟基、甲氧基和乙氧基的 4-羧化查耳酮被发现具有体外抑制活性,IC 50值在 0.057 至 0.26 μM 范围内,比别嘌呤醇强 10-60 倍。具有 Δ 3,9-同型异黄酮和黄酮支架的结构相关的羧酸也显示出针对黄嘌呤氧化酶的微摩尔活性。同时,二氢查尔酮和Δ2,3-高异黄酮羧酸及其氧杂-类似物的抑制剂效果低两个数量级以上。动力学和分子对接研究表明,羧基查尔酮和Δ3,9-同异黄酮类化合物是混合型抑制剂,它们大多与占据黄嘌呤氧化酶活性位点的游离酶结合。 图形概要