Isolation of three ligans from Ficus religiosa L..
Abstract
Phytochemical study on the leaves of Ficus religiosa led to the isolation of three lignans. Their chemical structures were determined to be (+)-pinoresinol (1), pinoresinol di-0- β-Dglucopyranoside (2) and syringaresinol 0-β-D-glucopyranoside (3) hy means of spectroscopic studies including NMR and ESI mass spectra. The antioxidant activities of these compounds were screened using DPPH system. Among them, compounds 1 and 3 exhibited significant scavengingactivines with EC50 values of 16.90 and 16.93 µM, respectively