Showing structure for n-(6-{[1-(6-ethyl-4,6-dihydroxy-5-methoxy-3-methyloxan-2-yl)-7-hydroxy-7-[2-(6-hydroxy-3,5-dimethylhepta-1,3-dien-1-yl)-3-methoxycyclopentyl]-1-methoxy-3-methylocta-1,5-dien-4-yl]oxy}-3-hydroxy-2-methyloxan-4-yl)ethanimidic acid