期刊
JOURNAL OF MEDICINAL CHEMISTRY
卷 64, 期 9, 页码 5905-5930出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jmedchem.1c00047
关键词
-
资金
- Wellcome Trust [092340, 100476, 105021, 203134, 204672]
An urgent need for new treatments for visceral leishmaniasis prompted the discovery of a preclinical candidate, GSK3494245/DDD01305143, through a medicinal chemistry program. The compound, identified through extensive scaffold-hopping exercise, showed in vivo efficacy as a proteasome inhibitor, shedding light on structure-activity relationships in the series.
There is an urgent need for new treatments for visceral leishmaniasis (VL), a parasitic infection which impacts heavily large areas of East Africa, Asia, and South America. We previously reported on the discovery of GSK3494245/DDD01305143 (1) as a preclinical candidate for VL and, herein, we report on the medicinal chemistry program that led to its identification. A hit from a phenotypic screen was optimized to give a compound with in vivo efficacy, which was hampered by poor solubility and genotoxicity. The work on the original scaffold failed to lead to developable compounds, so an extensive scaffold-hopping exercise involving medicinal chemistry design, in silico profiling, and subsequent synthesis was utilized, leading to the preclinical candidate. The compound was shown to act via proteasome inhibition, and we report on the modeling of different scaffolds into a cryo-EM structure and the impact this has on our understanding of the series' structure-activity relationships.
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