Showing structure for (1s,5r,6s,8r)-8-{1-[(1r,3as,8as)-4,4,8a-trimethyl-8-methylidene-hexahydro-1h-azulen-1-yl]ethenyl}-3-oxo-2,7-dioxabicyclo[3.2.1]octan-6-yl acetate