2-(3,3-Dimethylmorpholino)acetohydrazide

rac-(1R,2S)-2-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hex-5-enamido]cyclopentane-1-carboxylic acid

(1RS&,2SR&)-2-{2-[(1RS,2SR)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclopentyl]acetamido}cyclopentane-1-carboxylic acid

rac-(1R,2S)-2-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4,4-dimethylpentanamido]cyclopentane-1-carboxylic acid

rac-(1R,2S)-2-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-methoxybutanamido]cyclopentane-1-carboxylic acid

rac-(1R,2S)-2-[2-(cyclopropylmethyl)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido]cyclopentane-1-carboxylic acid

5-[2-cyclobutyl-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido]-2-methylpentanoic acid

3-{[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1-methylcyclohexyl]formamido}-2,2-dimethylpropanoic acid

3-{[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1-methylcyclohexyl]formamido}pentanoic acid

3-{[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1-methylcyclohexyl]formamido}-2-methylbutanoic acid

1-{2-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1H-pyrazol-1-yl]acetyl}pyrrolidine-3-carboxylic acid