1-((5-Nitropyridin-2-yl)sulfonyl)piperazine hydrochloride

2-({2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-3,3,3-trifluoropropanamido}methyl)-2-methylbutanoic acid

rac-2-[(2-{[(1R,5R,6S)-6-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)bicyclo[3.2.0]heptan-3-yl]formamido}ethyl)sulfanyl]acetic acid

3-{[(3R)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hexanamido]methyl}-4-methylpentanoic acid

2-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-N-methylpropanamido]-4,4-dimethylpentanoic acid

rac-2-[(1R,2R)-2-{2-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)ethoxy]acetamido}cyclohexyl]acetic acid

rac-3-{[(1R,5S)-bicyclo[3.1.0]hexan-2-yl]carbamoyl}-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoic acid

4-({bicyclo[3.2.0]heptan-2-yl}carbamoyl)-4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanoic acid

4-(1,2,3,4-Tetrahydronaphthalen-1-yl)oxane-2,6-dione

(2S)-2-({2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopentyl}formamido)-3-methoxypropanoic acid

(2S)-2-({5-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]oxolan-2-yl}formamido)-3-methoxypropanoic acid