Chemical constituents of Adina rubella

From the ethanol extract of Adina rubella, twelve compounds were isolated by silica gel and ODS column chromatography. Their structures were identified by spectroscopic analysis as: 5, 7-dihydroxy-2-methylchromone-7-O-β-D-glucopyranoside( 1 ), scopolin( 2 ), (+)-lyoniresinol-3a-O-β-D-glucopyranoside( 3 ), (6S, 7R, 8R)-7a-［(β-D-glucopyranosyl)oxy］ lyoniresinol( 4 ), harman-3-carboxylic acid( 5 ), lyaloside( 6 ), 3-oxoquinovid acid( 7 ), oleanolic acid( 8 ), 3-acetyl oleanolic acid( 9 ), quinovic acid 3-O-β-D-glucopyranosyl-28-O-β-L-rhamnopyranosyl ester( 10 ), quinovic acid 3-O-β-D-glucopyranosiyl-28-O-β-D-glucopyranosyl ester( 11 )and pyrocincholic acid 3-O-α-L-rhamnopyranosyl-28-［β-D-glucopyranosyl-(1→6)-O-β-D-glucopyranosyl］ ester( 12 ). Compounds 3, 4, 6, 8-10 were isolated from this plant for the first time.