Showing structure for 3-[(2s)-4-[(2e,4e,6s)-6-[(2s,5r,6r)-1,6-dimethyl-8,9-dioxaspiro[bicyclo[3.3.1]nonane-2,2'-oxiran]-3-en-7-yl]-4-methylhepta-2,4-dienoyl]-1-(5-hydroxy-6-methyloxan-2-yl)-3,5-dioxopyrrolidin-2-yl]-n-methylpropanimidic acid; ethane