2-(4-Ethylphenyl)-2-fluoroethane-1-sulfonyl chloride

rac-(2R,3R)-1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hex-5-enoyl]-2-methylpiperidine-3-carboxylic acid

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

(2RS,3RS)-2-methyl-1-[(1rs&,3rs&)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclobutanecarbonyl]piperidine-3-carboxylic acid

(2RS,3RS)-1-[(2S)-3-cyclopropyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoyl]-2-methylpiperidine-3-carboxylic acid

2-{1-benzyl-4-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methoxypropanamido]piperidin-4-yl}acetic acid

2-{4-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)acetamido]-1-methylpiperidin-4-yl}acetic acid

(3R)-1-[6-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pyridine-2-carbonyl]piperidine-3-carboxylic acid

2-cyclopropyl-2-{[6-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pyridin-2-yl]formamido}propanoic acid

(2S)-3-cyclopropyl-2-{[6-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pyridin-2-yl]formamido}propanoic acid

2-{1-[6-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pyridin-2-yl]-N-methylformamido}acetic acid