Showing structure for (1s,2s,6s,7s,8r,9s)-7-methyl-5,12-dimethylidene-7-[(2r)-oxiran-2-yl]-4,11-dioxo-3,10-dioxatricyclo[7.3.0.0²,⁶]dodecan-8-yl (2r)-2-methylbutanoate