3,6-Difluoro-2-methylpyridine

1-{N-methyl3-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-1-methyl-1H-pyrazole-5-amido}cyclopropane-1-carboxylic acid

rac-(1R,2R,4S)-7-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-methylpentanoyl]-7-azabicyclo[2.2.1]heptane-2-carboxylic acid

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

2-{2-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methoxybutanamido]cyclopentyl}acetic acid

2-{1-[(2S,3R)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methoxybutanoyl]azetidin-3-yl}acetic acid

(4R)-3-{2-[1-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclopropyl]acetyl}-1,3-thiazolidine-4-carboxylic acid

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

2-[N-(cyclopropylmethyl)-2-[1-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclopropyl]acetamido]acetic acid

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

3-[(3S)-N-ethyl-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-methylpentanamido]propanoic acid