(5-Chloro-4-morpholin-4-yl-6-oxo-1,6-dihydropyrimidin-2-yl)acetic acid ethyl ester

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

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

7-[1-benzyl-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pyrrolidine-3-carbonyl]-7-azabicyclo[2.2.1]heptane-2-carboxylic acid

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

6-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-hydroxybutanamido]-4,4-dimethylhexanoic acid

2-[(3R)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pentanamido]-6-methylbenzoic acid

2-{4-[(3R)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pentanoyl]morpholin-2-yl}acetic acid

(2S)-2-{2-[(1RS,2SR)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclopentyl]acetamido}-4-methylpentanoic acid

rac-2-[(1R,2S)-2-{2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-2-methylbutanamido}cyclopentyl]acetic acid

2-[(1RS,2SR)-2-[(2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methylpentanamido]cyclopentyl]acetic acid