Showing structure for (1s,4r,5r,9s,10s,11s,13r,14s)-2,11-dimethyl-6-methylidene-7-oxo-8,12,15-trioxapentacyclo[8.5.0.0¹,¹⁴.0⁵,⁹.0¹¹,¹³]pentadec-2-en-4-yl (2e)-2-methylbut-2-enoate