Bioorganic and Medicinal Chemistry p. 292 - 302 (2014)
Update date:2022-09-26
Topics:
Liu, Wei
Zhu, He-Min
Niu, Guo-Jun
Shi, En-Zhi
Chen, Jie
Sun, Bo
Chen, Wei-Qiang
Zhou, Hong-Gang
Yang, Cheng
The Severe Acute Respiratory Syndrome (SARS) is a serious life-threatening and strikingly mortal respiratory illness caused by SARS-CoV. SARS-CoV which contains a chymotrypsin-like main protease analogous to that of the main picornavirus protease, 3CLpro. 3CLpro plays a pivotal role in the viral replication cycle and is a potential target for SARS inhibitor development. A series of isatin derivatives as possible SARS-CoV 3CL pro inhibitors was designed, synthesized, and evaluated by in vitro protease assay using fluorogenic substrate peptide, in which several showed potent inhibition against the 3CLpro. Structure-activity relationship was analyzed, and possible binding interaction modes were proposed by molecular docking studies. Among all compounds, 8k1 showed most potent inhibitory activity against 3CLpro (IC50 = 1.04 μM). These results indicated that these inhibitors could be potentially developed into anti-SARS drugs.
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