A new chromone glycoside from leaves of Salix matsudana / 中草药

Objective: To study the chemical constituents from the leaves of Salix matsudana. Methods: The chemical constitunents were isolated by various column chromatographic methods. The structures of the compounds were elucidated on the basis of physiochemical properties and spectral analyses. Results: Six compounds were named as 5-β-D-glucosyloxy-7-hydroxychromone (1), 5, 7-dihydroxychromone (2), (2-hydroxyphenzyl)-O-β-D-glucopyranoside (3), vanillic acid-4-O-β-D-glucoside (4), cyclo (val-pro) (5), and gallic acid (6). Conclusion: Compound 1 is a new compound named matsudoside A, compounds 2-6 are obtained from this plant for the first time.