Abstract

N-furfuryl piperazine ureas disclosed by scientists at GSK Tres Cantos were chosen as antimycobacterial hits from a phenotypic whole-cell screen. Bioisosteric replacement of the furan ring in the GSK Tres Cantos molecules with a phenyl ring led to molecule (I) with an MIC of 1 μM against Mtb H37Rv, low cellular toxicity (HepG2 IC₅₀ ~ 80 μM), good DMPK properties and specificity for Mtb. With the aim of delineating the SAR associated with (I), fifty-five analogs were synthesized and screened against Mtb. The SAR suggests that the piperazine ring, benzyl urea and piperonyl moieties are essential signatures of this series. Active compounds in this series are metabolically stable, have low cellular toxicity and are valuable leads for optimization. Molecular docking suggests these molecules occupy the Q0 site of QcrB like Q203.

Graphic Abstract

Bioisosteric replacement of N-furfuryl piperazine-1-carboxamides yielded molecule (I) a novel lead with satisfactory PD, metabolism, and toxicity profiles.

中文翻译：

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抗结核苄基哌嗪脲的设计、合成及SAR

摘要

GSK Tres Cantos 的科学家披露的N-糠基哌嗪脲被选为来自表型全细胞筛选的抗分枝杆菌。用苯环取代 GSK Tres Cantos 分子中的呋喃环产生的分子 ( I ) 对Mtb H37Rv 的 MIC 为 1 μM，细胞毒性低（HepG2 IC ₅₀  ~ 80 μM），良好的 DMPK 特性和特异性山地车_ 为了描绘与 ( I ) 相关的 SAR，合成了 55 种类似物并针对Mtb进行了筛选. SAR 表明哌嗪环、苄基脲和胡椒基部分是该系列的基本特征。该系列中的活性化合物代谢稳定，细胞毒性低，是优化的宝贵线索。分子对接表明这些分子像 Q203 一样占据 QcrB 的 Q0 位点。

图形摘要

N-糠基哌嗪-1-羧酰胺的生物等排替代产生了分子 (I) 一种具有令人满意的 PD、代谢和毒性特征的新型先导。