.beta.-D-Glucopyranose, cyclic 4.fwdarw.2:6.fwdarw.2'-[(1S)-4-[6-[[[4,6-O-[[(1S)-4,4',5,5',6,6'-hexahydroxy[1,1'-biphenyl]-2,2'-diyl]dicarbonyl]-2,3-bis-O-(3,4,5-trihydroxybenzoyl)-.beta.-D-glucopyranosyl]oxy]carbonyl]-2,3,4-trihydroxyphenoxy]-4',5,5',6,6'-pentahydroxy[1,1'-biphenyl]-2,2'-dicarboxylate] 1,2,3-tris(3,4,5-trihydroxybenzoate) 95457-27-5 AIDS-070899 AIDS070899 Isorugosin D