Design, Synthesis, and Evaluation of Novel Anti-Trypanosomal Compounds.,Tetrahedron

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Design, Synthesis, and Evaluation of Novel Anti-Trypanosomal Compounds.
Tetrahedron ( IF 2.1 ) Pub Date : 2020-03-03 , DOI: 10.1016/j.tet.2020.131086
Lance T Lepovitz ₁ , Alan R Meis ₂ , Sarah M Thomas ₃ , Justin Wiedeman ₃ , Alexandra Pham ₂ , Kojo Mensa-Wilmot ₃ , Stephen F Martin ₂

Affiliation

Human African trypanosomiasis (HAT) is a deadly neglected tropical disease caused by the protozoan parasite Trypanosoma brucei. During the course of screening a collection of diverse nitrogenous heterocycles, we discovered two novel compounds that contain the tetracyclic core of the Yohimbine and Corynanthe alkaloids, were potent inhibitors of T. brucei proliferation and T. brucei methionyl-tRNA synthetase (TbMetRS) activity. Inspired by these key findings, we prepared several novel series of hydroxyalkyl δ-lactam, δ-lactam, and piperidine analogs and tested their anti-trypanosomal activity. A number of inhibitors are more potent against T. brucei than these initial hits with one hydroxyalkyl δ-lactam derivative being 25-fold more effective in our assay. Surprisingly, most of these active compounds failed to inhibit TbMetRS. This work underscores the importance of verifying, irrespective of close structural similarities, that new compounds designed from a lead with a known biological target engage the putative binding site.

中文翻译：

新型抗锥虫化合物的设计、合成和评价。

人类非洲锥虫病 (HAT) 是一种致命的被忽视的热带疾病，由原生动物寄生虫布氏锥虫引起。在筛选一系列不同的含氮杂环化合物的过程中，我们发现了两种新化合物，它们含有育亨宾和 Corynanthe 生物碱的四环核心，它们是布氏杆菌增殖和布氏杆菌甲硫氨酰-tRNA 合成酶 (TbMetRS) 活性的有效抑制剂。受这些关键发现的启发，我们制备了几个新系列的羟烷基 δ-内酰胺、δ-内酰胺和哌啶类似物，并测试了它们的抗锥虫活性。许多抑制剂对布氏锥虫的作用比这些最初的抑制剂更有效，其中一种羟烷基 δ-内酰胺衍生物在我们的测定中有效 25 倍。令人惊讶的是，这些活性化合物中的大多数都未能抑制 TbMetRS。

更新日期：2020-03-03

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