.beta.-D-Glucopyranose, cyclic3.fwdarw.2:6.fwdarw.2'-[4,4',5,6,6'-pentahydroxy-5'-[2,3,4-trihydroxy-6-[[1,3,4,6-tetrakis-O-(3,4,5-trihydroxybenzoyl)-.beta.-D-glucopyranos-2-O-yl]carbonyl]phenoxy][1,1'-biphenyl]-2,2'-dicarboxylate] cyclic 2.fwdarw.9:4.fwdarw.1-(3,4,4a,9b- tetrahydro-4,4,4a,6,7-pentahydroxy-3-oxo-1,9-dibenzofurandicarboxylate)1-(3,4,5-trihydroxybenzoate) 118102-87-7 AIDS-025840 AIDS025840 Euphorbin A