5-(6-methoxy-1H-indol-2-yl)-1-methyl-1H-pyrazol-4-amine

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

(2S)-2-{[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)phenyl]formamido}butanoic acid

2-({2-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)acetamido]acetamido}methyl)butanoic acid

2-{[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pentanamido]methyl}pentanoic acid

(1RS,3SR)-3-[(2R)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-(methylsulfanyl)butanamido]cyclopentane-1-carboxylic acid

(2S,4R)-1-[(2R)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-(methylsulfanyl)butanoyl]-4-hydroxypyrrolidine-2-carboxylic acid

(2S,4R)-1-[(2S)-4-(benzyloxy)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-oxobutanoyl]-4-hydroxypyrrolidine-2-carboxylic acid

(2S,4S)-1-[(2S)-4-(benzyloxy)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-oxobutanoyl]-4-hydroxypyrrolidine-2-carboxylic acid

2-[(2S)-3-(tert-butoxy)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-N-(prop-2-yn-1-yl)propanamido]acetic acid

2-{4-[2-cyclopropyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoyl]piperazin-1-yl}acetic acid