Highly Suppressing Wild-Type HIV-1 and Y181C Mutant HIV-1 Strains by 10-Chloromethyl-11-demethyl-12-oxo-calanolide A with Druggable Profile

We herein report a new compound: 10-chloromethyl-11-demethyl-12-oxo-calanolide A (20, EC50 = 7.4 nM, St = 1417), which demonstrates a druggable profile with 32.7% oral bioavailability in rat, tolerated oral single dose toxicity in mice, and especially the feature of highly efficient suppression of the wild-type HIV-1 and Y181C mutant HIV-1 at an EC50 = 7.4 nM and EC50 = 0.46 nM, respectively.