Cyclopenta[c]pyran-4-carboxylicacid, 1-(b-D-glucopyranosyloxy)-6-[[6-(b-D-glucopyranosyloxy)-2,6-dimethyl-1-oxo-2,7-octadienyl]oxy]-1,4a,5,6,7,7a-hexahydro-7-methyl-,methyl ester, [1S-[1a,4aa,6a(2E,6R*),7a,7aa]]-