Showing structure for 5-(hex-4-enoyl)-3,6-dihydroxy-1,3-dimethyl-7-(prop-1-en-1-yl)-8-(2,4,5-trihydroxy-3,5-dimethyl-6-oxocyclohexa-1,3-diene-1-carbonyl)bicyclo[2.2.2]oct-5-en-2-one