4-(1H-1,2,4-triazol-1-yl)pyridine dihydrochloride

7-{2-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)ethoxy]acetyl}-7-azabicyclo[2.2.1]heptane-1-carboxylic acid

3-{[(5-Chlorofuran-2-yl)methyl]sulfanyl}-2-hydroxypropanoic acid

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

2-{[(5-Chlorofuran-2-yl)methyl]sulfanyl}-3-methylbutanoic acid

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

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

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

6-{[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1-methyl-1H-pyrazol-4-yl]formamido}hexanoic acid

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

rac-(1R,6S)-3-{2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]butanoyl}-3-azabicyclo[4.1.0]heptane-7-carboxylic acid