[(2S,4S)-2-[(1R)-1-amino-2-hydroxyethyl]-4-(1H-imidazol-4-ylmethyl)-5-oxoimidazolidin-1-yl]acetic acid
[(2s,4s)-2-[(1r)-1-amino-2-hydroxyethyl]-4-(1h-imidazol-4-ylmethyl)-5-oxoimidazolidin-1-yl]acetic acid