Ethyl 4-(6-methylpyrimidin-4-yl)piperazine-1-carboxylate

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

rac-1-[(1R,2S)-2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopentanecarbonyl]piperidine-2-carboxylic acid

(2S)-3-cyclopropyl-2-{[(1RS,2SR)-2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopentyl]formamido}propanoic acid

(2S,4R)-1-[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pyridine-2-carbonyl]-4-hydroxypyrrolidine-2-carboxylic acid

(2S,4R)-1-{1-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclobutanecarbonyl}-4-hydroxypyrrolidine-2-carboxylic acid

(2R)-2-{[1-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclopropyl]formamido}-3,3-dimethylbutanoic acid

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

2-[(2R)-N-ethyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3,3-dimethylbutanamido]acetic acid

3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-{methyl[1-(methylsulfanyl)propan-2-yl]carbamoyl}propanoic acid

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