2-[5-(5-Fluoropyridin-2-yl)-octahydropyrrolo[3,4-c]pyrrol-2-yl]quinoxaline

5-({4-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclohexyl}formamido)pentanoic acid

3-Methyl-5-[4-[3-(trifluoromethyl)phenyl]piperazine-1-carbonyl]-1,3-diazinane-2,4-dione

(2S,3R)-2-({2-[1-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)ethyl]-1,3-thiazol-4-yl}formamido)-3-hydroxybutanoic acid

4-({2-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)ethoxy]acetamido}methyl)cyclohexane-1-carboxylic acid

1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-methoxybutanoyl]-2-methylpiperidine-2-carboxylic acid

2-[(2R)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoyl]-1,2,3,4-tetrahydroisoquinoline-5-carboxylic acid

1-{3-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]pentanoyl}-4-hydroxypiperidine-4-carboxylic acid

1-[2-ethyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanoyl]-4-hydroxypiperidine-4-carboxylic acid

1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)acetyl]-4-hydroxypiperidine-4-carboxylic acid

1-[(2R)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-methylpentanoyl]-3-hydroxypiperidine-3-carboxylic acid