期刊
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
卷 238, 期 -, 页码 -出版社
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.ejmech.2022.114508
关键词
2-(furan-2-ylmethylene)hydrazine-1-carbothioamide derivatives; SARS-CoV-2; Main protease; Non-peptidomimetic inhibitors
资金
- National Natural Science Foundation of China [22131002, 81821004, 22161142019]
- Peking University Special Fund for COVID-19
- Tencent Foundation
- Beijing Xinxi Disruptive Technology Innovation Foundation
This study reported novel non-peptidomimetic inhibitors of SARS-CoV-2 Mpro developed through in-house library screening and biological evaluation. The compounds showed high inhibitory activity and low cytotoxicity, providing a promising starting point for further drug development and optimization.
The COVID-19 posed a serious threat to human life and health, and SARS-CoV-2 Mpro has been considered as an attractive drug target for the treatment of COVID-19. Herein, we report 2-(furan-2-ylmethylene)hydrazine-1carbothioamide derivatives as novel inhibitors of SARS-CoV-2 Mpro developed by in-house library screening and biological evaluation. Similarity search led to the identification of compound F8-S43 with the enzymatic IC50 value of 10.76 mu M. Further structure-based drug design and synthetic optimization uncovered compounds F8-B6 and F8-B22 as novel non-peptidomimetic inhibitors of Mpro with IC50 values of 1.57 mu M and 1.55 mu M, respectively. Moreover, enzymatic kinetic assay and mass spectrometry demonstrated that F8-B6 was a reversible covalent inhibitor of Mpro. Besides, F8-B6 showed low cytotoxicity with CC50 values of more than 100 mu M in Vero and MDCK cells. Overall, these novel SARS-CoV-2 Mpro non-peptidomimetic inhibitors provide a useful starting point for further structural optimization.
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