Showing structure for (4z)-5-hydroxy-4-[(2e,4e,6r)-1-hydroxy-4-methyl-6-[(1r,3r,4s,5s)-1,4,8-trimethyl-6-oxo-2,9-dioxabicyclo[3.3.1]non-7-en-3-yl]hepta-2,4-dien-1-ylidene]-2h-pyrrol-3-one