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