10-ethyl-2-(3-hydroxy-4-methoxyphenyl)-5-methyl-2,3-dihydro-4H,8H-pyrano[2,3-f]chromene-4,8-dione

(2S)-2-[(3S)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pentanamido]-3-methylbutanoic acid

3-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-(propan-2-yl)butanamido]-2-methylpropanoic acid

Methyl 4-cyclopropyl-2-fluoro-5-nitrobenzoate

2-[2-(cyclopropylmethyl)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido]-3,3,3-trifluoropropanoic acid

2-{[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1,2,5-oxadiazol-3-yl]formamido}-3,3,3-trifluoropropanoic acid

3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-[(3-hydroxyoxan-4-yl)carbamoyl]propanoic acid

4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-5-{6-methyl-7-azabicyclo[4.2.0]octan-7-yl}-5-oxopentanoic acid

rac-2-{1-[(1R,3R,5R)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)bicyclo[3.1.0]hexan-1-yl]-N-methylformamido}-2-methylpropanoic acid

(2R)-1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-methylbutanoyl]-4,4-difluoropyrrolidine-2-carboxylic acid

(3R)-3-{[4-bromo-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)phenyl]formamido}butanoic acid