5-Bromo-1,5-dihydroimidazo[1,2-a]pyridine

1-{[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-(methoxymethyl)butanamido]methyl}cyclobutane-1-carboxylic acid

7-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-(methoxymethyl)propanamido]heptanoic acid

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

2-{N-ethyl-1-[5-ethyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)phenyl]formamido}acetic acid

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

(2S)-2-{[(1RS,2SR)-2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopentyl]formamido}-4-(methylsulfanyl)butanoic acid

(2R,4R)-1-[(1RS,2SR)-2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopentanecarbonyl]-4-hydroxypyrrolidine-2-carboxylic acid

(2R)-2-[(2R)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-(methylsulfanyl)butanamido]-4-hydroxybutanoic acid

5-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)but-2-enamido]-3-methyl-1,2-thiazole-4-carboxylic acid

4-(3-tert-butylpyrrolidin-1-yl)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-oxobutanoic acid