Fmoc-(R)-2-amino-6,6,6-trifluorohexanoic acid

3-{2-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)oxan-3-yl]acetamido}cyclobutane-1-carboxylic acid

4-{2-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)oxan-3-yl]acetamido}-2-methylbut-2-enoic acid

2-{N-benzyl-2-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)oxan-3-yl]acetamido}acetic acid

3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-[({2-hydroxybicyclo[2.2.1]heptan-2-yl}methyl)carbamoyl]propanoic acid

4-[2-(1-benzylpyrrolidin-3-yl)pyrrolidin-1-yl]-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-oxobutanoic acid

4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-{[(oxepan-4-yl)methyl]carbamoyl}butanoic acid

(3S)-3-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)but-2-ynamido]hexanoic acid

(3S)-3-{[(1RS,3RS)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclohexyl]formamido}hexanoic acid

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

(3R)-3-hydroxy-3-[2-(methylsulfanyl)phenyl]propanoic acid