1-(Cyclopropylmethyl)piperidine-2-carbaldehyde

1-[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4H-1,2,4-triazole-3-carbonyl]-3,3-dimethylpyrrolidine-2-carboxylic acid

(2R)-1-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-methylbut-2-enoyl]-2-methylpyrrolidine-2-carboxylic acid

(2R)-2-{2-[(1RS,2RS)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclohexyl]acetamido}-3-methylbutanoic acid

2-{[(2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-methylpentanamido]oxy}propanoic acid

2-{[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4,4-difluorobutanamido]oxy}propanoic acid

2-({[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)phenyl]formamido}oxy)propanoic acid

2-[({5-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]furan-2-yl}formamido)oxy]propanoic acid

2-{[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-methylpentanamido]oxy}propanoic acid

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

2-{[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methylbutanamido]oxy}-3-methoxypropanoic acid