Ophiopogonin D

(2S,3R,4R,5R,6S) -2- (((2R,3R,4S,5S,6R) -5-hydroxy-2- (((4R,5'R,6R,6aR,6bS,8aS,8bR,9S,10R,11aS,12aS,12bS) -4-hydroxy-5',6a,8a,9-tetramethyl-1,3,3',4,4',5,5',6,6a,6b,6',7,8,8a,8b,9,11a,12,12a,12b-icosahydrospiro[naphtho[2',1':4,5]indeno[2,1-b]furan-10,2'-pyran]-6-yl) oxy) -6-methyl-4- (((2S,3R,4S,5R) -3,4,5-trihydroxytetrahydro-2H-pyran-2-yl) oxy) tetrahydro-2H-pyran-3-yl) oxy) -6-methyltetrahydro-2H-pyran-3,4,5-triol