Potent ROS inhibitors from DC of Nepali origin.

A bioassay-guided isolation on the plant DC yielded compounds tambulin (), and prudomestin (), from ethyl acetate fraction which showed the highest ROS inhibiting activity (IC = 17.8 ± 1.1 µg/mL). Structure elucidation of pure compounds was done using mass and NMR spectroscopic techniques. Compounds and revealed potent ROS inhibition with IC = 7.5 ± 0.3 and 1.5 ± 0.3 µg/mL, respectively, as compared to standard ibuprofen (IC = 11.2 ± 1.9 µg/mL). Likewise, both compounds and showed potent antioxidant activity with IC = 32.65 ± 0.31 and 26.96 ± 0.19 µg/mL, respectively. studies were supported by molecular docking and drug-likeliness properties. studies of and with cyclooxygenase2 (COX-2) showed perfect binding affinity with binding energies of -8.4 and -8.6 kcal/mol, respectively, comparable to standard ibuprofen (-7.7 kcal/mol). Drug likeness and ADMET showed higher gastrointestinal absorption of and and no toxic impact.