7-Bromothiochromane

(2R)-2-{[2-bromo-5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)phenyl]formamido}-4-hydroxybutanoic acid

(2R)-2-{[4-bromo-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)phenyl]formamido}-4-hydroxybutanoic acid

(2R)-2-{[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-fluorophenyl]formamido}-4-hydroxybutanoic acid

(2R)-2-{[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cycloheptyl]formamido}-4-hydroxybutanoic acid

(1rs,4rs)-4-[(2S)-3-cyclopropyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido]cyclohexane-1-carboxylic acid

2-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2,2-dimethylbutanamido]benzoic acid

(2S)-3-cyclopropyl-2-(2-{1-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclobutyl}acetamido)propanoic acid

2-[(2S)-3-cyclopropyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-N-(2,2,2-trifluoroethyl)propanamido]acetic acid

3-[3-cyclopropyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido]benzoic acid

3-[(2S)-3-cyclopropyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido]benzoic acid