UX9 ux9 methyl [(2S)-1-{2-(2-{(3R,4S)-3-benzyl-4-hydroxy-1-[(1S,2R)-2-hydroxy-2,3-dihydro-1H-inden-1-yl]-2-oxopyrrolidin-3-yl}ethyl)-2-[4-(pyridin-4-yl)benzyl]hydrazinyl}-3,3-dimethyl-1-oxobutan-2-yl]carbamate UX9