Showing structure for 9',15'-dihydroxy-7'-methoxy-5,6',10',14',16'-pentamethyl-6-(sec-butyl)-5,6-dihydro-2',20'-dioxaspiro[pyran-2,21'-tricyclo[17.3.1.0⁴,⁹]tricosane]-5',10',12',16'-tetraen-3'-one