Table 2. QSAR based bioactivity prediction for ligand validation.

Compounds	Prediction of activity spectra for substances (Pa = 0.3 to 0.7)
	Anti-infective	Anti-viral	Anti-microbial
QSAR: quantitative structure-activity relationship; Pa: prediction of activity score as per PASS server. Pa score of 0.3 to 0.7 signifies moderate activity. ×: Pa score less than 0.3; √: Pa score in the range 0.3 to 0.7
Nobiletin	×	√	√
Reticuline	×	×	√
Kirenol	×	√	√
Chrysin	√	√	√
3-Caffeoylshikimic acid	√	√	√
Gigantamide A	×	√	×
Dasyclamide	×	√	√