2-[(4-Bromo-5-chlorothiophen-2-yl)oxy]ethan-1-amine

(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

3-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-N-(4-methylphenyl)propanamido]propanoic acid

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

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

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