Development of chalcone-like derivatives and their biological and mechanistic investigations as novel influenza nuclear export inhibitors
作者:Chuanfeng Liu、Ying Zhang、Ping Li、Huinan Jia、Han Ju、Jiwei Zhang、Edeildo Ferreira da Silva-Júnior、Sunanda Samanta、Parimal Kar、Bing Huang、Xinyong Liu、Peng Zhan
DOI:10.1016/j.ejmech.2023.115845
日期:2023.12
Initially, it was confirmed that the substituting the α,β-unsaturated ketone with pent-1,4-diene-3-one as a linker group significantly reduced the cytotoxicity of the final compounds. Subsequently, the penta-1,4-dien-3-one group was utilized as a privileged fragment for further structural optimization. Following two subsequent rounds of optimizations, we identified compound IIB-2, which contains a 2,6-dimethoxyphenyl-
关于当前抗流感药物耐药性的出现,我们之前基于表型的筛选研究确定化合物A9是一种有前途的先导化合物。这种查耳酮类似物含有 2,6-二甲氧基苯基部分,对奥司他韦耐药菌株 (H1N1 pdm09) 表现出显着的抑制活性,EC 50值为 1.34 μM。然而,它也表现出显着的细胞毒性,CC 50值为 41.46 μM。因此,本研究选择化合物A9作为原型结构进行进一步的结构优化。最初,证实用pent-1,4-diene-3-one 作为连接基团取代α,β-不饱和酮可显着降低最终化合物的细胞毒性。随后,penta-1,4-dien-3-one基团被用作进一步结构优化的特权片段。经过随后两轮优化,我们确定了化合物IIB-2,其中包含 2,6-二甲氧基苯基- 和 1,4-戊二烯-3-酮 部分。该化合物对奥司他韦耐药菌株表现出与其前体(化合物A9 )相当的抑制作用,同时显示出较低的毒性(CC 50 > 100