4-(Bromomethyl)-4-(cyclopentylmethoxy)oxane

(3S)-3-{[4-chloro-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)phenyl]formamido}pentanoic acid

(2S)-2-[(3S)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-N-methylbutanamido]propanoic acid

2-{3-[(3S)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanamido]cyclobutyl}acetic acid

3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-{[2-(1,3-thiazol-4-yl)ethyl]carbamoyl}propanoic acid

1-[1-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclopropanecarbonyl]-4-methylpiperidine-3-carboxylic acid

2-(cyclopropylmethyl)-3-{[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclopent-2-en-1-yl]formamido}propanoic acid

1-[(Azepan-3-yl)methyl]-3-propylurea

1-(Methylamino)-3-(1,3-thiazol-4-yl)propan-2-one

tert-butyl N-[1-oxo-1-(1,3-thiazol-2-yl)butan-2-yl]carbamate

tert-butyl N-methyl-N-[2-(4-methyl-1,3-thiazol-2-yl)-2-oxoethyl]carbamate