(3-Amino-2,2-dimethylpropyl)(methyl)amine

(1RS,3RS,5RS)-3-[(3S)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanamido]bicyclo[3.1.0]hexane-1-carboxylic acid

5-[(3S)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanoyl]-5-azaspiro[2.4]heptane-7-carboxylic acid

1-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pentanoyl]-4-methylpiperidine-3-carboxylic acid

1-[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pentanoyl]-4-methylpiperidine-3-carboxylic acid

2-fluoro-5-(1-methyl-1H-imidazol-2-yl)pyridine

3-[benzyl(methyl)amino]-2-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methylbutanamido]propanoic acid

2-{[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanamido]methyl}-4-methyl-1,3-thiazole-5-carboxylic acid

2-{1-[2-cyclopropyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoyl]pyrrolidin-3-yl}acetic acid

2-({[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)oxolan-3-yl]formamido}methyl)-3-methylbutanoic acid

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