(Z)-N'-hydroxy-2-((7-methoxybenzo[d][1,3]dioxol-5-yl)oxy)acetimidamide

3-cyclopentyl-3-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2,2-difluoropropanamido]propanoic acid

5-[3-cyclopropyl-4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-N-methylbutanamido]pentanoic acid

1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1,3-thiazole-5-carbonyl]azetidine-2-carboxylic acid

rac-(1R,2S)-2-[({2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-4-methyl-1,3-thiazol-5-yl}formamido)methyl]cyclopropane-1-carboxylic acid

3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-{octahydropyrrolo[1,2-a]piperazin-2-yl}-4-oxobutanoic acid

3-{N-ethyl-1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1,3-thiazol-4-yl]formamido}propanoic acid

3-[N-ethyl-4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-methylbutanamido]butanoic acid

3-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methylbutanamido]oxolane-3-carboxylic acid

rac-4-{[(2R,3S)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)oxolan-2-yl]formamido}-3-hydroxybutanoic acid

rac-1-[(2R,3S)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)oxolane-2-carbonyl]-3-methoxypyrrolidine-3-carboxylic acid