2-[(E)-[(5-acetylpyridin-2-yl)hydrazinylidene]methyl]benzenesulfonic acid;(2R)-6-amino-2-[(3S)-3-[4-(3,4-dimethoxyphenoxy)phenyl]-3-methyl-2-oxopyrrolidin-1-yl]-N-hydroxyhexanamide;2-[(E)-[[5-[[(5R)-5-[(3S)-3-[4-(3,4-dimethoxyphenoxy)phenyl]-3-methyl-2-oxopyrrolidin-1-yl]-6-(hydroxyamino)-6-oxohexyl]carbamoyl]pyridin-2-yl]hydrazinylidene]methyl]benzenesulfonic acid;N-[(5R)-5-[(3S)-3-[4-(3,4-dimethoxyphenoxy)phenyl]-3-methyl-2-oxopyrrolidin-1-yl]-6-methoxy-6-oxohexyl]-methylboronamidic acid