Binding of plant terpenoids with SARS-COV-2 CLpro protease. The compounds (3,3 dimethylally) isoflavone, licoleafol, myricitrin, prephenazine, thymoquinone, salvinorin a, bilobalide, citral, and ginkgolide A were docked with CLpro and the interactions are shown from 1 to 9.