Tetramethylthiouronium iodide,S-(2-acetylphenyl)

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

2-{[(2R,3S)-3-(benzyloxy)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanamido]methyl}pyrimidine-5-carboxylic acid

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

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

2-[N-(3-chlorophenyl)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanamido]acetic acid

Tert-butyl (3-(quinoxalin-6-yl)prop-2-yn-1-yl)carbamate

4-({1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)ethyl]-1H-imidazol-4-yl}formamido)-2-methylbutanoic acid

1-{2-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2,2-dimethylpropanamido]ethyl}-1H-1,2,3-triazole-4-carboxylic acid

(2S)-2-({1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)ethyl]-1H-1,2,3-triazol-4-yl}formamido)pentanoic acid

(2S)-3-[(2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-phenylpropanamido]-2-hydroxypropanoic acid