Showing structure for (1's,2r,2's,4s,4's,7'r,8'r,9's,12's,13'r,16's)-4,5,5,7',9',13'-hexamethyl-5'-oxaspiro[oxolane-2,6'-pentacyclo[10.8.0.0²,⁹.0⁴,⁸.0¹³,¹⁸]icosan]-18'-ene-7',16'-diol