Showing structure for (1s,2r,5r,7s,8r,10r,11s,12s,17r)-10,11,12-trihydroxy-2,7,14-trimethyl-16-oxapentacyclo[9.7.0.0²,⁸.0⁵,⁷.0¹³,¹⁷]octadec-13-en-15-one