The successfully prepared ligand and protein molecules were docked in the Xtra Precision Docking Mode. It was used to determine the strength of interactions between viral proteins and (R)-(+)-rosmarinic acid, specifically to know binding affinities and inhibition constants between them. To assess the effectiveness of (R)-(+)-rosmarinic acid as a potential ligand, docking metrics including docking scores, hydrophobic interactions, hydrogen bonding (side and back chains), π–π stacking, and salt bridge contacts were examined (Vijayakumar et al. 2016 (link)).