Showing structure for (2r,3e)-5-[(1r,4r,6r,10s,12r)-4,12-dimethyl-9-methylidene-5-oxatricyclo[8.2.0.0⁴,⁶]dodecan-12-yl]-2-hydroxy-2-methyl-5-oxopent-3-en-1-yl acetate