Discovery of 5-Phenylpyrazolopyrimidinone Analogs as Potent Antitrypanosomal Agents with In Vivo Efficacy
作者:Yang Zheng、Magali van den Kerkhof、Tiffany van der Meer、Sheraz Gul、Maria Kuzikov、Bernhard Ellinger、Iwan J. P. de Esch、Marco Siderius、An Matheeussen、Louis Maes、Geert Jan Sterk、Guy Caljon、Rob Leurs
DOI:10.1021/acs.jmedchem.3c00161
日期:2023.8.10
Trypanosoma brucei, is one of the neglected tropical diseases with a continuing need for new medication. We here describe the discovery of 5-phenylpyrazolopyrimidinone analogs as a novel series of phenotypic antitrypanosomal agents. The most potent compound, 30 (NPD-2975), has an in vitro IC50 of 70 nM against T. b. brucei with no apparent toxicity against human MRC-5 lung fibroblasts. Showing good physicochemical
非洲人类锥虫病 (HAT) 由布氏锥虫引起,是一种被忽视的热带疾病,持续需要新的药物。我们在这里描述了 5-苯基吡唑并嘧啶酮类似物作为一系列新型表型抗锥虫药物的发现。最有效的化合物30 (NPD-2975),针对T. b. 的体外 IC 50为 70 nM 。brucei对人 MRC-5 肺成纤维细胞没有明显毒性。30显示出良好的理化性质、低毒性潜力、可接受的代谢稳定性和其他药代动力学特征,并在 T. b. 急性小鼠模型中进行了进一步评估。布氏感染。口服50mg/kg,每天两次,连续五天后,所有感染小鼠均痊愈。鉴于其良好的类药特性和较高的体内抗锥虫潜力,5-苯基吡唑并嘧啶酮类似物30代表了未来治疗 HAT 药物开发的一个有前景的先导药物。
Structural Optimization of BIPPO Analogs as Potent Antimalarials
作者:Yang Zheng、An Matheeussen、Louis Maes、Guy Caljon、Geert Jan Sterk、Rob Leurs
DOI:10.3390/molecules28134939
日期:——
aimed to enhance the antimalarial potency of the previously reported hit compound BIPPO (pIC50 5.9). Through systematic modification of pyrazolopyrimidinone analogs, we discovered the promising analog 30 (NPD-3547), which exhibited approximately one log unit higher in vitro potency (pIC50 6.8) against Plasmodium falciparum. Furthermore, we identified several other BIPPO analogs (23, 28, 29 and 47a)