Showing structure for 2,2',7',7',11',16'-hexamethyl-3,5'-dioxo-2,9a-dihydro-1h-6',15'-dioxaspiro[imidazo[1,2-a]indole-9,14'-tetracyclo[9.7.0.0²,⁸.0¹²,¹⁶]octadecan]-3'-en-10'-yl acetate