Kobophenol A, an oligomeric stilbene, blocks the interaction between the ACE2 receptor and S1-RBD with an IC50 of 1.81 μM and inhibits SARS-CoV-2 viral infection in cells with an EC50 of 71.6 μM. Kobophenol A inhibits the activity of partially purified rat brain protein kinase C (PKC) with an IC50 of 52 μM[1][2].
[1]. Gangadevi S, et al. Kobophenol A Inhibits Binding of Host ACE2 Receptor with Spike RBD Domain of SARS-CoV-2, a Lead Compound for Blocking COVID-19. J Phys Chem Lett. 2021;12(7):1793-1802. [2]. Xu G, Zhang LP, Chen LF, Hu CQ. Yao Xue Xue Bao. 1994;29(11):818-822.
