Flavonoids From the Leaves of Bambusa Pervariabilis McClure

A new flavonoid, 5,4'-dihydroxy-3',5'-dimethoxy-7-O[β-D-apiose-(1→2)]-β-D-glucopyranosyl flavonoside(1), along with four known flavonoids 5,7,3',4'-tetrahydroxy-6-C-β-L-arabinosyl flavonoside(2), 5,7,4'-trihydroxy-6-C-β-D- glucopyranosyl flavonoside(3), 5,7,3',4'-tetrahydroxy-6-C-β-D-glucopyranosyl flavonoside(4), 5,7,3',4'-tetrahydroxy-8-C-β-D-glucopyranosyl flavonoside(5) were isolated from the leaves of Bambusa pervariabilis McClure. Their structures were determined on the basis of spectroscopic techniques and chemical methods.