6-Amino-2-butoxy-5-nitrosopyrimidin-4-ol

2-[(2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methoxypropanoyl]-2-azabicyclo[2.2.2]octane-6-carboxylic acid

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

2-{1-[2-cyclobutyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)acetyl]piperidin-3-yl}acetic acid

1-[3-cyclopropyl-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2,2-difluoropropanamido]cyclopropane-1-carboxylic acid

3-({bicyclo[3.2.0]heptan-6-yl}carbamoyl)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoic acid

4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-{[2-(methoxymethyl)-3-methylbutyl]carbamoyl}butanoic acid

4-[(3R)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hexanoyl]-2-methylmorpholine-2-carboxylic acid

(3R)-3-[3-cyclobutyl-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido]hexanoic acid

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

2-[(2R)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoyl]-5-oxopyrazolidine-3-carboxylic acid