Ellagic acid derivatives from the stem bark of Dipentodon sinicus

Ellagic acid derivatives were isolatedfi-om Dipentodon siniCUs and their structures ivere identified as 3.3'4'-tri-O-methlellagic acid(3). 3,3'-di-O-meth.vlellagic acid (2), 4,4' -di-O-methlellagic acid (3), 3,3' -diO-methlellagic acid-4'-O-alpha-L-rhamnopyranoside(4), 3,3',4'tri-O-methylellagic acid-4'O-beta-Dglitcopyranoside (5), 33'-di-O-meth.vlellagic acid-4'-O-beta-D-glitcop 'raiioside (6), and ellagic acid (7). All the coml,)ounds vvere isolatedfor the first time from the title plant.