N-[(6-chloro-2-methoxypyridin-3-yl)methyl]-N-methylhydroxylamine

3-[N-ethyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4,4-difluorobutanamido]-2-methylpropanoic acid

2-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4,4,4-trifluoro-N-(propan-2-yl)butanamido]acetic acid

(2S)-2-[4-ethyl-6-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-N-methylhexanamido]propanoic acid

(2S)-2-{1-[2-bromo-5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)phenyl]-N-methylformamido}propanoic acid

3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-{[(2R)-1-[methyl(propan-2-yl)amino]propan-2-yl]carbamoyl}propanoic acid

2-[N-(butan-2-yl)-4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2,2-dimethylbutanamido]acetic acid

2-[N-tert-butyl-3-cyclopropyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido]acetic acid

4-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)but-2-enamido]-2-hydroxybenzoic acid

3-cyclopropyl-2-{[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1,2,5-oxadiazol-3-yl]formamido}propanoic acid

2-({[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pyridin-2-yl]formamido}methyl)pentanoic acid