Protodioscin

(2S,2’S,3R,3’R,4R,4’R,5R,5’R,6S,6’S)-6,6′-(((2R,3R,4S,5S,6R)-4-hydroxy-2-(((4S,6aR,6bS,8aS,8bR,9S,10R,11aS,12aS,12bS)-10-hydroxy-6a,8a,9-trimethyl-10-((R)-3-methyl-4-(((2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)butyl)-3,4,5,6,6a,6b,7,8,8a,8b,9,10,11a,12,12a,12b-hexadecahydro-1H-naphtho[2′,1′:4,5]indeno[2,1-b]furan-4-yl)oxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,5-diyl)bis(oxy))bis(2-methyltetrahydro-2H-pyran-3,4,5-triol)