(2S,3S,4S,5R,6R)-6-{[(2R,3R,4S,5S,6S)-2-{[(3S,4aR,6aR,6bS,8aS,11R,12aS,14aR,14bS)-11-carboxy-4,4,6a,6b,8a,11,14b-heptamethyl-14-oxo-1,2,3,4,4a,5,6,6a,6b,7,8,8a,9,10,11,12,12a,14,14a,14b-icosahydrocyclohexa[1,2-a]chrysen-3-yl]oxy}-6-carboxy-4,5-dihydroxy-3,4,5,6-tetrahydro-2H-pyran-3-yl]oxy}-3,4,5-trihydroxytetrahydropyran-2-carboxylic acid