2,2a(2)-Bis(chlorosulfonyl)[1,1a(2)-biphenyl]-4,4a(2)-dicarbonyl dichloride

2-[(2R)-1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hex-4-ynoyl]pyrrolidin-2-yl]acetic acid

2-[(2R)-1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hex-4-ynoyl]piperidin-2-yl]acetic acid

2-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-methylpentanamido]hex-4-ynoic acid

2-[(2S)-1-[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-methylpentanoyl]pyrrolidin-2-yl]acetic acid

4-({1-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]spiro[2.3]hexan-1-yl}formamido)pentanoic acid

2-[({1-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]spiro[2.3]hexan-1-yl}formamido)methyl]butanoic acid

(2R)-2-({1-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]spiro[2.3]hexan-1-yl}formamido)-3-methylbutanoic acid

3-({1-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]spiro[2.3]hexan-1-yl}formamido)-3-methylbutanoic acid

4-({1-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]spiro[2.3]hexan-1-yl}formamido)-3-methylbutanoic acid

2-{[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-N,2,2,3-tetramethylbutanamido]oxy}acetic acid