Two series of easily accessible anilines were identified as inhibitors of influenza A virus subtype H1N1, and extensive chemical synthesis and analysis of the structure–activity relationship were performed. The compounds were shown to interfere with low pH-induced membrane fusion mediated by the H1 and H5 (group 1) hemagglutinin (HA) subtypes. A combination of virus resistance, HA interaction, and molecular dynamics simulation studies elucidated the binding site of these aniline-based influenza fusion inhibitors, which significantly overlaps with the pocket occupied by some H3 HA-specific inhibitors, indicating the high relevance of this cavity for drug design.

中文翻译：

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基于苯胺的H1N1流感病毒抑制剂对血凝素介导的融合的作用

确定了两个易于获得的苯胺系列作为甲型流感病毒H1N1的抑制剂，并进行了广泛的化学合成和结构-活性关系的分析。该化合物显示可干扰由H1和H5（第1组）血凝素（HA）亚型介导的低pH诱导的膜融合。病毒抗性，HA相互作用和分子动力学模拟研究相结合，阐明了这些基于苯胺的流感融合抑制剂的结合位点，该位点与某些H3 HA特异性抑制剂所占据的口袋明显重叠，表明该腔与药物设计。