2-Chloro-3-(3,4-dimethoxyphenyl)propanenitrile

2-{2-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)but-2-ynamido]phenyl}acetic acid

5-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)but-2-ynamido]-2-methylbenzoic acid

2-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)but-2-ynamido]-5-methylbenzoic acid

(2R)-2-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)but-2-ynamido]-2-phenylacetic acid

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

4-chloro-2-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)but-2-ynamido]benzoic acid

(1rs&,3rs&)-3-[(1RS,3RS)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclohexaneamido]cyclobutane-1-carboxylic acid

rac-tert-butyl (3R,4S)-3-(3-chlorophenyl)-4-hydroxypyrrolidine-1-carboxylate

rac-tert-butyl (3R,4S)-3-hydroxy-4-({spiro[2.2]pentan-1-yl}methyl)pyrrolidine-1-carboxylate

rac-1-benzyl-3-[(1R,3S)-3-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-2,2-difluorocyclopropaneamido]pyrrolidine-3-carboxylic acid