Showing structure for 2-[9-hydroxy-7-({2-[10-hydroxy-8-(methoxycarbonyl)-1,4b,8-trimethyl-9-oxo-decahydrophenanthren-2-ylidene]acetyl}oxy)-8-(methoxycarbonyl)-1,4b,8-trimethyl-10-oxo-decahydrophenanthren-2-ylidene]-n-(2-hydroxyethyl)ethanimidic acid