Ethyl 3-(4-nitrophenyl)-3-oxetaneacetate

1-[2-(Difluoromethoxy)phenyl]ethane-1-sulfonyl chloride

[2-(Pyridin-2-yl)-1,3-thiazol-4-yl]methanesulfonyl chloride

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

rac-(1R,3R)-3-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanamido]cyclohexane-1-carboxylic acid

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

3-({[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclobutyl]formamido}methyl)-1-methyl-1H-pyrazole-5-carboxylic acid

3-(N-ethyl-1-{3-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-1-methyl-1H-pyrazol-5-yl}formamido)propanoic acid

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

1-[6-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pyridine-2-carbonyl]-3-methylazetidine-3-carboxylic acid

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