Replacing the naphthalene C-unit of the anti-tuberculosis drug bedaquiline with a range of bicyclic heterocycles of widely differing lipophilicity gave analogs with a 4.5-fold range in clogP values. The biological results for these compounds indicate on average a lower clogP limit of about 5.0 in this series for retention of potent inhibitory activity (MIC₉₀s) against M.tb in culture. Some of the compounds also showed a significant reduction in inhibition of hERG channel potassium current compared with bedaquiline, but there was no common structural feature that distinguished these.

中文翻译：

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结核病药物贝达喹啉类似物的构效关系，其中萘单元被双环杂环取代。

用一系列亲脂性差异很大的双环杂环取代抗结核药物贝达喹啉的萘 C 单元，得到 clogP 值范围为 4.5 倍的类似物。这些化合物的生物学结果表明，该系列中的 clogP 下限平均约为 5.0，可保留针对培养物中M.tb的有效抑制活性（MIC ₉₀ s）。与贝达喹啉相比，一些化合物还显示出对 hERG 通道钾电流的抑制显着降低，但没有共同的结构特征来区分这些化合物。