Phân lập 3 hợp chất lignan từ lá cây đề (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-O-b-D-glucopyranoside (2) and syringaresinol O-b-D-glucopyranoside (3) by 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 scavenging activities with EC₅₀ values of 16.90 and 16.93 mM, respectively.