3,4-Dichloro-5-(chlorosulfonyl)benzoyl chloride

4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-{[(1,2,3-thiadiazol-5-yl)methyl]carbamoyl}butanoic acid

6-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2,2-dimethylpropanoyl]-6-azaspiro[3.4]octane-8-carboxylic acid

6-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methylbutanoyl]-6-azaspiro[3.4]octane-8-carboxylic acid

6-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pentanoyl]-6-azaspiro[3.4]octane-8-carboxylic acid

3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-{[(2-methyl-1,1-dioxo-1lambda6,2-thiazolidin-3-yl)methyl]carbamoyl}propanoic acid

(1RS,5SR)-5-[(3S)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hexanamido]cyclohex-3-ene-1-carboxylic acid

2-[(3S)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hexanamido]-5-methylhexanoic acid

(3R)-3-({5-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-1,3-oxazol-4-yl}formamido)hexanoic acid

3-cyclopropyl-3-(2-{[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)ethyl]sulfanyl}acetamido)-2,2-difluoropropanoic acid

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