Showing structure for (1'r,3'r,8'r,12'z,19'z,21'z,25'r,26's)-18'-hydroxy-5',13',17',26'-tetramethyl-2',10',16',24'-tetraoxaspiro[oxirane-2,27'-tetracyclo[23.2.1.0³,⁸.0⁸,²⁶]octacosane]-4',12',19',21'-tetraene-11',23'-dione