Showing structure for (1s,2r,3r,5s,9s,10s,11s,12s,13r)-2,3,11,12-tetrahydroxy-2,11-dimethyl-6-methylidene-8,14-dioxatetracyclo[8.4.0.0¹,¹³.0⁵,⁹]tetradecan-7-one