4-(3-acetylphenoxy)-N-(cyanomethyl)-N-methylbutanamide

2-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4,4-difluoro-N-(prop-2-yn-1-yl)butanamido]acetic acid

2-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4,4-difluorobutanamido]pent-4-ynoic acid

1-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4,4-difluorobutanoyl]-3-hydroxypyrrolidine-3-carboxylic acid

5-({1-[1-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclopropyl]-N-methylformamido}methyl)furan-2-carboxylic acid

5-{[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-N,2-dimethylpropanamido]methyl}furan-2-carboxylic acid

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

3-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)oxane-4-carbonyl]-3-azabicyclo[3.1.0]hexane-6-carboxylic acid

3-{2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-4-methylpentanoyl}-3-azabicyclo[3.1.0]hexane-6-carboxylic acid

9H-fluoren-9-ylmethyl N-({5-[(1,1,1-trifluoropropan-2-yl)amino]-2,3-dihydro-1-benzofuran-2-yl}methyl)carbamate

Rel-benzyl ((1R,2S,3R,5S)-3-hydroxy-8-azabicyclo[3.2.1]octan-2-yl)carbamate