5-(4-Bromo-1,2-thiazol-3-yl)-1,2,4-oxadiazole-3-carboxylic acid

2-[(2R)-1-[6-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pyridine-2-carbonyl]pyrrolidin-2-yl]acetic acid

2-[(2R)-1-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanoyl]pyrrolidin-2-yl]acetic acid

2-[(2R)-1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-methoxybutanoyl]pyrrolidin-2-yl]acetic acid

2-[(2R)-1-[(3S)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-methylpentanoyl]pyrrolidin-2-yl]acetic acid

2-[(2R)-1-[(3R)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-methylpentanoyl]pyrrolidin-2-yl]acetic acid

2-[(2S)-1-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hexanoyl]pyrrolidin-2-yl]acetic acid

2-[(2S)-1-[(1RS,3RS,5RS)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)bicyclo[3.1.0]hexane-1-carbonyl]pyrrolidin-2-yl]acetic acid

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

1-{[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-methylpropanamido]methyl}spiro[2.3]hexane-1-carboxylic acid

2-[(2R)-1-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1-methyl-1H-pyrazole-5-carbonyl]pyrrolidin-2-yl]acetic acid