4-(2,2,3,3,3-Pentafluoropropyl)-1,3-dioxolane-2-one

2-(Piperidin-2-yl)propane-1-sulfonyl fluoride

tert-butyl N-[4-(fluorosulfonyl)-2-phenylbutyl]carbamate

tert-butyl N-[5-(fluorosulfonyl)-2-methylpentan-2-yl]carbamate

tert-butyl N-({1-[(chlorosulfonyl)methyl]cyclopropyl}methyl)carbamate

tert-butyl N-[3-(chlorosulfonyl)propyl]-N-cyclopropylcarbamate

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

4-({[1-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclobutyl]formamido}methyl)-1-methyl-1H-pyrazole-5-carboxylic acid

4-{[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-methylbut-2-enamido]methyl}-1-methyl-1H-pyrazole-5-carboxylic acid

4-({[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclobutyl]formamido}methyl)-1-methyl-1H-pyrazole-5-carboxylic acid

(4R)-3-{4-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-1-methyl-1H-pyrazole-5-carbonyl}-1,3-thiazolidine-4-carboxylic acid