Showing structure for 6-(6-{[(4-carboxy-3-hydroxy-3-methylbutanoyl)oxy]methyl}-11-hydroxy-3a,6,9a,11a-tetramethyl-3,4,7,10-tetraoxo-1h,2h,5h,5ah,8h,9h,11h-cyclopenta[a]phenanthren-1-yl)-2-methylhept-2-enoic acid