See R-D-Glucopyranose,cyclic 2,3:4,6-bis[(1S)-4,4',5,5',6,6'-hexahydroxy[1,1'- biphenyl]-2,2'-dicarboxylate] 1-[3-[6-[[[2,3-O-[[(1S)-4,4',5,5',6,6'- hexahydroxy[1,1'-biphenyl]-2,2'-diyl]- dicarbonyl]-R-D-glucopyranosyl]oxy]carbonyl]- 2,3,4-trihydroxypheno