1-[2-(tert-butyldimethylsilanyloxy)ethyl]-5-iodo-1H[1,2,3]triazole

1-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-methoxybutanoyl]-3-methylpiperidine-2-carboxylic acid

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

1-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-methoxybutanamido]cyclopropane-1-carboxylic acid

3-[8-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)octanamido]-2-methylpropanoic acid

3-{1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methylpentanoyl]azetidin-3-yl}propanoic acid

3-{1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1,3-thiazole-4-carbonyl]azetidin-3-yl}propanoic acid

1-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)but-2-ynoyl]-2-methylpiperidine-3-carboxylic acid

4-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-(1H-pyrrol-2-yl)propanamido]but-2-ynoic acid

2-{1-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)but-2-ynamido]cyclopropyl}acetic acid

(1RS,3RS)-3-[(2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3,3-dimethylbutanamido]cyclohexane-1-carboxylic acid