2.6. Bioactivity score (BAS) prediction Bioactivity score values also predict the overall druglikeness of a compound. Molinspiration version 2016.10 was used to predict the drug score of WS phytoconstituents with respect to several human receptors (Proudfoot, 2002). As a general rule, the higher the bioactivity score, the greater is the probability of the compound under investigation for being active.