N-cyclopentyl-N-(2-(3-(pyridin-4-yl)-1H-pyrazol-1-yl)ethyl)-2-(thiophen-2-yl)acetamide

3-cyclopropyl-4-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hex-4-ynamido]butanoic acid

5-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hex-4-ynamido]-1-methyl-1H-pyrazole-3-carboxylic acid

2-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-N-methylhex-4-ynamido]-2-methylpropanoic acid

2-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-methylpentanamido]hex-4-ynoic acid

2-[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-methylpentanamido]hex-4-ynoic acid

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

2-{1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hex-4-ynoyl]azetidin-3-yl}acetic acid

2-[(2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methoxypropanamido]-3,3,3-trifluoro-2-methylpropanoic acid

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

(3RS,4RS)-1-[(2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methoxypropanoyl]-3,4-dimethylpyrrolidine-3-carboxylic acid