tert-butyl 3-{[4-(2-aminoethyl)-1H-pyrazol-1-yl]methyl}azetidine-1-carboxylate

4-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pent-4-ynoyl]morpholine-2-carboxylic acid

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

(2S,4S)-1-[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methylpentanoyl]-4-hydroxypyrrolidine-2-carboxylic acid

5-[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methylpentanamido]pyridine-3-carboxylic acid

(2S)-2-[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methylpentanamido]-3-methylpentanoic acid

3-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-N,2,2,3-tetramethylbutanamido]-2-methylpropanoic acid

4-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2,2,3-trimethylbutanamido]-3-methoxybutanoic acid

(2S)-2-{4-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)ethyl]-N,5-dimethylhexanamido}propanoic acid

3-{[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-fluorophenyl]formamido}-2-methylbutanoic acid

6-{[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1,2-oxazol-3-yl]formamido}-4-methylhexanoic acid