Showing structure for (1s,2r,4s,6s,7s,10r,11r)-12-(hydroxymethyl)-2,7-dimethyl-5,8-dioxo-3,9-dioxatetracyclo[9.3.0.0²,⁴.0⁶,¹⁰]tetradec-12-en-1-yl (2e)-2-methylbut-2-enoate