Ethyl 2-(aminomethyl)pent-4-enoate

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

3-[N-benzyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-5,5-dimethylhexanamido]propanoic acid

2-{[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methylbutanamido]methyl}-3,3,3-trifluoropropanoic acid

3-[(2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methylbutanamido]-2-(trifluoromethyl)propanoic acid

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

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

2-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoyl]-2-azabicyclo[2.1.1]hexane-5-carboxylic acid

2-[(2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanoyl]-2-azabicyclo[2.1.1]hexane-5-carboxylic acid

2-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanoyl]-2-azabicyclo[2.1.1]hexane-5-carboxylic acid

2-[(2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pentanoyl]-2-azabicyclo[2.1.1]hexane-5-carboxylic acid