.alpha.-D-Glucopyranose, cyclic 4,6-[3-[5-[[[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-dihydroxyphenoxy]-4,4',5,5',6,6'-hexahydroxy[1,1'-biphenyl]-2,2'-dicarboxylate] cyclic 2,3-(4,4',5,5',6,6'-hexahydroxy[1,1'-biphenyl]-2,2'-dicarboxylate) 1-(3,4,5- trihydroxybenzoate) 82978-00-5 AIDS-121626 AIDS121626 Sanguiin H-6