Showing structure for 5-[5,11-dihydroxy-13-(hydroxymethyl)-9,16-dimethyl-15,17,20-trioxahexacyclo[14.3.1.1¹⁴,¹⁸.0¹,¹³.0⁴,¹².0⁵,⁹]henicosan-8-yl]pyran-2-one