2-[(Cyclobutylmethyl)amino]propane-1-sulfonyl fluoride

2-{1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hexanamido]cyclobutyl}acetic acid

3-{[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)furan-2-yl]formamido}-2-(propan-2-yl)butanoic acid

3-[2-cyclobutyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)acetamido]-2-(propan-2-yl)butanoic acid

2-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-N,2-bis(propan-2-yl)butanamido]acetic acid

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

(2S)-2-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-(propan-2-yl)butanamido]-3-methylbutanoic acid

2-(2-{[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)ethyl]sulfanyl}acetyl)-2-azabicyclo[2.1.1]hexane-5-carboxylic acid

2-[2-cyclopropyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)acetyl]-2-azabicyclo[2.1.1]hexane-5-carboxylic acid

2-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-(propan-2-yl)butanoyl]-2-azabicyclo[2.1.1]hexane-5-carboxylic acid

3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-{methyl[(1,3-thiazol-5-yl)methyl]carbamoyl}propanoic acid