Showing structure for (5-{hydroxy[2-hydroxy-5-(1-hydroxyethyl)-4-oxo-5h-pyrrol-3-ylidene]methyl}-5,7-dimethyl-6-(prop-1-en-1-yl)-2,3,4,4a,6,8a-hexahydro-1h-naphthalen-2-yl)methyl acetate