Flavanone and Diphenylpropane Glycosides and Glycosidic Acyl Esters from Viscum articulatum

Seven new compounds including three flavanone glycosides, visartisides A−C (1−3), three glycoside acyl esters, visartisides D−F (4−6), and one diphenylpropane glycoside, (4′-hydroxy-2′,3′,6′,3′′-tetramethoxy-1,3-diphenylpropane)-4′′-O-β-d-glucopyranoside (7), along with four known flavanone glycosides (8−11) were isolated from the leaves and stems of Viscum articulatum. The structure elucidation of 1−7 was based on spectroscopic data analysis. Biological evaluation showed that 1, 2, and 10 exhibited antioxidant activity using a DPPH method and that compounds 1, 3, and 11 were active in a lipopolysaccharide-induced nitric oxide assay.