S-[[2,5-Dihydro-1-hydroxy-2,2,5,5-tetra(methyl-d3)-1H-pyrrol-3-yl-4-d]methyl-d2] methanesulfonothioate

(1RS,6SR)-3-[(2R)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoyl]-3-azabicyclo[4.1.0]heptane-7-carboxylic acid

2-{[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3,3-dimethylbutanamido]methyl}butanoic acid

(2R)-2-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3,3-dimethylbutanamido]pentanoic acid

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

rac-(1R,3S)-3-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1,3-thiazole-4-amido]cyclohexane-1-carboxylic acid

2-{N-benzyl-1-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1-methyl-1H-pyrazol-3-yl]formamido}acetic acid

4-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3,3,3-trifluoropropanamido]-1-methyl-1H-pyrazole-3-carboxylic acid

5-[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pentanamido]-1-methyl-1H-pyrazole-3-carboxylic acid

4-{[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pyridin-2-yl]formamido}-3,3-dimethylbutanoic acid

4-({1-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopentyl}formamido)-3,3-dimethylbutanoic acid