id author title date pages extension mime words sentences flesch summary cache txt cord-321714-yhruzu7f Ryu, Young Bae SARS-CoV 3CL(pro) inhibitory effects of quinone-methide triterpenes from Tripterygium regelii 2010-03-15 .txt text/plain 1933 114 59 Isolated quinone-methide triterpenes (1-4) and 5 were evaluated for SARS-CoV 3CL pro inhibitory activities and showed potent inhibitory activities with IC 50 values of 10.3, 5.5, 9.9 , and 2.6 lM, respectively, whereas the corresponding 5 having phenol moiety was observed in low activity (IC 50 = 21.7 lM). Isolated quinone-methide triterpenes (1-4) and 5 were evaluated for SARS-CoV 3CL pro inhibitory activities and showed potent inhibitory activities with IC 50 values of 10.3, 5.5, 9.9 , and 2.6 lM, respectively, whereas the corresponding 5 having phenol moiety was observed in low activity (IC 50 = 21.7 lM). We then further characterized the inhibitory mechanism of the isolated quinone-methide triterpenes against SARS-CoV 3CL pro activity. Although all isolated quinone-methide triterpenes has previously been known compounds, this is the first time it has been shown to possess SARS-CoV 3CL pro inhibitory activity. ./cache/cord-321714-yhruzu7f.txt ./txt/cord-321714-yhruzu7f.txt