(S)-3-methylmorpholine-3-carboxylic acid

rac-(1R,2S)-2-{[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-5-methylhex-4-enamido]methyl}cyclopropane-1-carboxylic acid

rac-(1R,2S)-2-[({2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]pyrimidin-5-yl}formamido)methyl]cyclopropane-1-carboxylic acid

rac-(1R,2S)-2-[({3-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]oxan-3-yl}formamido)methyl]cyclopropane-1-carboxylic acid

rac-(1R,2S)-2-{[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hex-5-enamido]methyl}cyclopropane-1-carboxylic acid

5-(3,3-difluoropyrrolidin-1-yl)-4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-5-oxopentanoic acid

2-{N-cyclopropyl-1-[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1,2-oxazol-3-yl]formamido}acetic acid

2-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2,2-dimethyl-N-(prop-2-yn-1-yl)propanamido]acetic acid

4-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-(methoxymethyl)propanamido]cyclopent-2-ene-1-carboxylic acid

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

2-{1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-(methoxymethyl)propanamido]cyclobutyl}acetic acid