rugosin A

1-O,2-O,3-O-Trigalloyl-4-O,6-O-[2,2',3,3',4-pentahydroxy-4'-(2-carboxy-4,5,6-trihydroxyphenoxy)[1,1'-biphenyl]-6,6'-diylbis(carbonyl)]-β-D-glucopyranose

Galloyl 2-O,3-O-digalloyl-4-O,6-O-[[4'-(2,3,4-trihydroxy-6-carboxyphenoxy)-2,2',3,3',4-pentahydroxy[1,1'-biphenyl]-6,6'-diyl]dicarbonyl]-β-D-glucopyranoside