(S)-Hexahydroindolizin-3(2H)-one

(3S)-3-[6-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hexanamido]hexanoic acid

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

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

rac-2-{[(3R,5R)-5-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]oxolan-3-yl]formamido}hex-4-ynoic acid

5-({2-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)acetamido]acetamido}methyl)oxolane-2-carboxylic acid

5-{[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-methoxybutanamido]methyl}oxolane-2-carboxylic acid

2-{8-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanoyl]-8-azabicyclo[3.2.1]octan-3-yl}acetic acid

Potassium (6-cyanopyridin-3-yl)trifluoroborate

2-{1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-methyl-1,3-thiazol-5-yl]-N-(2-methoxyethyl)formamido}acetic acid

1-{2-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)ethoxy]acetyl}-3-propylpyrrolidine-3-carboxylic acid