tert-butyl N-[1-(6-bromo-1H-1,3-benzodiazol-2-yl)-2-hydroxyethyl]carbamate

rac-(1R,3S)-3-({[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)oxolan-3-yl]formamido}methyl)-2,2-difluorocyclopropane-1-carboxylic acid

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

3-{[6-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hexanamido]methyl}-2,2-difluorocyclopropane-1-carboxylic acid

2-{[(2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3,3-dimethylbutanamido]methyl}cyclopropane-1-carboxylic acid

2-({3-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]pentanamido}methyl)cyclopropane-1-carboxylic acid

2-({3-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)ethoxy]propanamido}methyl)cyclopropane-1-carboxylic acid

rac-(1R,2S)-2-({[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)phenyl]formamido}methyl)cyclopropane-1-carboxylic acid

rac-(1R,2S)-2-({[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1-methylcyclopentyl]formamido}methyl)cyclopropane-1-carboxylic acid

rac-(1R,2S)-2-[({2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopentyl}formamido)methyl]cyclopropane-1-carboxylic acid

(1RS,3SR)-3-{[(2R)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-(methylsulfanyl)butanamido]methyl}-2,2-difluorocyclopropane-1-carboxylic acid