Showing structure for (1's,2r,4'r,5s,6r,7'r,8'r,9's,10'e,12'e,14's,15's,16'e,19'r)-7',8',9',15'-tetrahydroxy-5,6,6',10',14',16'-hexamethyl-2',20'-dioxaspiro[oxane-2,21'-tricyclo[17.3.1.0⁴,⁹]tricosane]-5',10',12',16'-tetraen-3'-one