Showing structure for (1'r,2r,2's,4's,7's,8'r,9's,12's,13'r,15'r,16'r,18's,19'r)-15',16'-bis(acetyloxy)-7',9',13'-trimethyl-5-methylidene-5'-oxaspiro[oxane-2,6'-pentacyclo[10.8.0.0²,⁹.0⁴,⁸.0¹³,¹⁸]icosan]-19'-yl acetate