Design and Synthesis of Cinanserin Analogs as Severe Acute Respiratory Syndrome Coronavirus 3CL Protease Inhibitors
Qingang Yang, Lili Chen, Xuchang He, Zhenting Gao, Xu Shen, Donglu Bai · Chemical and Pharmaceutical Bulletin · 2008
The severe acute respiratory syndrome (SARS) coronavirus 3CL protease is an attractive target for the development of anti-SARS drugs. In this paper, cinanserin (1) analogs were synthesized and tested for the inhibitory activities against SARS-coronavirus (CoV) 3CL protease by fluorescence resonance energy transfer (FRET) assay. Four analogs show significant activities, especially compound 26 with an IC(50) of 1.06 microM.