[1-(Pyrazin-2-yl)piperidin-2-yl]methanol

3-[(2R)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methylbutanamido]oxolane-3-carboxylic acid

2-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hexanamido]cyclohexane-1-carboxylic acid

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

2-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-5-methylhexanamido]acetic acid

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

rac-(1R,2S)-2-{[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hexanamido]methyl}cyclopropane-1-carboxylic acid

1-{2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopropaneamido}cyclohexane-1-carboxylic acid

rac-3-{[(1R,3S)-3-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-2,2-difluorocyclopropyl]formamido}-2-hydroxy-2-methylpropanoic acid

5-{2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopropaneamido}cyclohex-3-ene-1-carboxylic acid

rac-4-[N-methyl(1R,2S)-2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopropaneamido]benzoic acid