rac-(2R,3S)-3-bromo-2-ethynyloxane

2-{4-[(3S)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hexanoyl]piperazin-1-yl}acetic acid

2-[(3R)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hexanamido]-2-(thiophen-2-yl)acetic acid

2-cyclopropyl-2-{[(3R)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hexanamido]oxy}acetic acid

4-[(3R)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hexanamido]-3,3-dimethylbutanoic acid

(2R)-2-[(3S)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hexanamido]butanoic acid

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

4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-5-oxo-5-[3-(prop-2-yn-1-yloxy)pyrrolidin-1-yl]pentanoic acid

2-{[6-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pyridin-2-yl]formamido}hex-4-ynoic acid

rac-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-{[(1R,2R)-2-hydroxycycloheptyl]carbamoyl}propanoic acid

rac-2-({[(1R,3S)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclopentyl]formamido}methyl)-1,3-thiazole-4-carboxylic acid