(2R,3R,4R,5S,6S)-3,4,5-trihydroxy-6-((4-(4-(4-(methylsulfonyl)phenyl)-2-oxo-1-propyl-2,5-dihydro-1H-pyrrol-3-yl)benzyl)oxy)tetrahydro-2H-pyran-2-carboxylicacid