Design, Synthesis, and Biological Evaluation of Chiral-Proline Derivatives as Novel HSP90 Inhibitors

IF 3.5 3区医学 Q2 CHEMISTRY, MEDICINAL

ACS Medicinal Chemistry Letters Pub Date : 2025-01-22 DOI:10.1021/acsmedchemlett.4c0055010.1021/acsmedchemlett.4c00550

Chao Zhang, Shuang Cui, Jialin Mu, Kexin Liu, Yuanxun Wang, Hongyu Zhao, Yuguang Mu, Youming Zhang*, Xiaobo Wan* and Chun Song*,

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引用次数: 0

Abstract

Heat shock protein 90 (HSP90) is a promising target for oncology therapeutics. Over the past decades, several small molecule inhibitors have demonstrated significant antitumor activity in clinical trials. However, nearly all HSP90 inhibitors in clinical trials have failed due to toxicity or insufficient efficacy. By leveraging crystal structures and current knowledge, we synthesized and evaluated a series of novel derivatives with potent HSP90 inhibitory activity, optimized from resorcinol-based (2R, 4R)-4-phenylproline. These derivatives underwent SAR analysis, leading to the discovery of compounds 16t and 20m, which exhibit strong HSP90 binding affinity and antiproliferative effects against MCF-7, HCT116, SKBr3, K562, and A549 cell lines. Nevertheless, further optimization of derivatives 16t and 20m was required to enhance their oral bioavailability and isoform selectivity. Our findings provide valuable insights for the ongoing research into selective HSP90α inhibitors and lay a foundation for developing next-generation HSP90α inhibitors and antitumor agents.

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来源期刊

ACS Medicinal Chemistry Letters CHEMISTRY, MEDICINAL-

CiteScore

7.30

自引率

2.40%

发文量

328

审稿时长

1 months

期刊介绍： ACS Medicinal Chemistry Letters is interested in receiving manuscripts that discuss various aspects of medicinal chemistry. The journal will publish studies that pertain to a broad range of subject matter, including compound design and optimization, biological evaluation, drug delivery, imaging agents, and pharmacology of both small and large bioactive molecules. Specific areas include but are not limited to: Identification, synthesis, and optimization of lead biologically active molecules and drugs (small molecules and biologics) Biological characterization of new molecular entities in the context of drug discovery Computational, cheminformatics, and structural studies for the identification or SAR analysis of bioactive molecules, ligands and their targets, etc. Novel and improved methodologies, including radiation biochemistry, with broad application to medicinal chemistry Discovery technologies for biologically active molecules from both synthetic and natural (plant and other) sources Pharmacokinetic/pharmacodynamic studies that address mechanisms underlying drug disposition and response Pharmacogenetic and pharmacogenomic studies used to enhance drug design and the translation of medicinal chemistry into the clinic Mechanistic drug metabolism and regulation of metabolic enzyme gene expression Chemistry patents relevant to the medicinal chemistry field.