3-(3-(6,7-dihydropyrazolo[1,5-a]pyrazin-5(4H)-yl)-3-oxopropyl)quinazolin-4(3H)-one

2-[(2R,3S)-3-(benzyloxy)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanamido]-6-fluorobenzoic acid

3-[3-(benzyloxy)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanamido]-4-fluorobenzoic acid

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

4-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido]oxolane-3-carboxylic acid

2-{4-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-(methylsulfanyl)butanoyl]morpholin-3-yl}acetic acid

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

Ethyl 2-(4-chlorophenyl)pyrrolidine-2-carboxylate

Tert-butyl 1-[2-(chlorosulfonyl)ethyl]cyclopropane-1-carboxylate

1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-(methylsulfanyl)butanoyl]-3-methylpiperidine-4-carboxylic acid

tert-butyl N-{4-[1-(aminomethyl)-4,4-difluorocyclohexyl]cyclohexyl}carbamate