D-Glucose, cyclic 4-2':6-2-(4-(6-(((2,3:4,6-bis-O-((4,4',5,5',6,6'-hexahydroxy(1,1'-biphenyl)-2,2'-diyl)dicarbonyl)-beta-D-glucopyranosyl)oxy)carbonyl)-2,3,4-trihydroxyphenoxy)-4',5,5',6,6'-pentahydroxy(1,1'-biphenyl)-2,2'-dicarboxylate) c