2,2-difluoro-1-(1H-pyrazol-4-yl)ethan-1-amine

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

5-{[(2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methylbutanamido]methyl}oxolane-3-carboxylic acid

rac-(3R,5R)-5-({2-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)acetamido]acetamido}methyl)oxolane-3-carboxylic acid

rac-(1R,5S)-5-[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1H-1,2,4-triazole-3-amido]cyclohex-3-ene-1-carboxylic acid

3-{[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-5-methylhex-4-enamido]methyl}pentanoic acid

rac-(1R,6S)-2-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pent-4-enoyl]-2-azabicyclo[4.1.0]heptane-1-carboxylic acid

Chloromethyl 3-hydroxy-3-(propan-2-yl)piperidine-1-carboxylate

5-({2-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)ethoxy]acetamido}methyl)-1-methyl-1H-pyrazole-4-carboxylic acid

5-[({1-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclobutyl}formamido)methyl]-1,3-oxazole-4-carboxylic acid

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