2-(p-Tolyl)ethanethioic O-acid

5-{2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-2-methylbutanamido}pyridine-2-carboxylic acid

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

2-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-methylbutanamido]-6-fluorobenzoic acid

3-{1-[(2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pentanoyl]piperidin-3-yl}propanoic acid

tert-butyl N-[5-(1-amino-2,2-difluoroethyl)-2-hydroxyphenyl]carbamate

(2R)-2-[(2R)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-phenylacetamido]-4-hydroxybutanoic acid

(2R)-2-[(2R)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pentanamido]-3-(1H-imidazol-4-yl)propanoic acid

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

3-[3-(Hydroxymethyl)thian-3-yl]thiolan-3-ol

(2R)-2-{[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-methyl-1,3-thiazol-5-yl]formamido}-3-hydroxypropanoic acid