4-Amino-4-cyclopropylpentanoic acid

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

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

(2R)-2-{[2-bromo-5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)phenyl]formamido}-3-hydroxypropanoic acid

3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-{[(1R)-1-(pyridin-4-yl)ethyl]carbamoyl}propanoic acid

(2S,3R)-2-[(2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido]-3-hydroxybutanoic acid

3-ethoxy-4-[(2R)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido]butanoic acid

2-[N-(butan-2-yl)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4,4-dimethylpentanamido]acetic acid

3-{2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-3,3,3-trifluoropropanamido}-2-methylbutanoic acid

1-[N-methyl6-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)bicyclo[3.2.0]heptane-3-amido]cyclopropane-1-carboxylic acid

25,27-Dihydro-4,7-didehydro-7-deoxyneophysalin A