Showing structure for (1r)-1-[(1'r,2s,3'r,8'r,12'e,17'r,18'e,24'r,25's)-5',13',25'-trimethyl-11',22'-dioxo-2',10',16',23'-tetraoxaspiro[oxirane-2,26'-tetracyclo[22.2.1.0³,⁸.0⁸,²⁵]heptacosane]-4',12',18',20'-tetraen-17'-yl]ethyl acetate