Showing structure for methyl 3-[(1s,3r,4r,8r,10s,11s,14r,15r)-11,15-dimethyl-14-(6-methyl-7-oxohept-5-en-2-yl)-5-methylidene-6-oxo-7-oxapentacyclo[8.7.0.0¹,³.0⁴,⁸.0¹¹,¹⁵]heptadecan-3-yl]propanoate