(2R,3R)-3-(cyclopentylmethyl)-N-hydroxy-4-oxo-4-piperidin-1-yl-2-[(3,4,4-trimethyl-2,5-dioxoimidazolidin-1-yl)methyl]butanamide (2R,3R)-3-(cyclopentylmethyl)-4-oxo-4-(1-piperidyl)-2-[(3,4,4-trimethyl-2,5-dioxo-imidazolidin-1-yl)methyl]butanehydroxamic acid (2R,3R)-3-(cyclopentylmethyl)-4-oxo-4-(1-piperidyl)-2-[(3,4,4-trimethyl-2,5-dioxo-1-imidazolidinyl)methyl]butanehydroxamic acid (2R,3R)-3-(cyclopentylmethyl)-2-[(2,5-diketo-3,4,4-trimethyl-imidazolidin-1-yl)methyl]-4-keto-4-piperidino-butanehydroxamic acid (2R,3R)-3-(cyclopentylmethyl)-N-hydroxy-4-oxo-4-piperidin-1-yl-2-[(3,4,4-trimethyl-2,5-dioxo-imidazolidin-1-yl)methyl]butanamide Trocade Trocade (TN) Cipemastat (USAN) D03517