4-[(1E)-2-[3,5-BIS(ACETYLOXY)PHENYL]VINYL]PHENYL-SS-D-GLUCOPYRANOSIDURONIC ACID METHYL ESTER TRIACETATE; (E)-1-(3,5-DIACETOXYPHENYL)-2-(4'-O-2,3,4-TRIACETYL -SS-D-GLUCURONOPYRANOSIDOPHENYL)ETHENE METHYL ESTER