Dimethyl 3,3-((2-morpholinoethyl)azanediyl)dipropanoate

(1RS,3RS,5RS)-3-[(2RS&,3SR&)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)oxolane-2-amido]bicyclo[3.1.0]hexane-1-carboxylic acid

rac-(1R,3R,5R)-3-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-(methylsulfanyl)butanamido]bicyclo[3.1.0]hexane-1-carboxylic acid

3-[1-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclopropaneamido]bicyclo[3.1.0]hexane-1-carboxylic acid

rac-(1R,3R,5R)-3-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanamido]bicyclo[3.1.0]hexane-1-carboxylic acid

rac-2-({[(1R,3R,5R)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)bicyclo[3.1.0]hexan-1-yl]formamido}methyl)-3-methylbutanoic acid

rac-3-{[(1R,3R,5R)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)bicyclo[3.1.0]hexan-1-yl]formamido}-3-methylbutanoic acid

rac-2-{1-[(1R,3R,5R)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)bicyclo[3.1.0]hexane-1-carbonyl]pyrrolidin-2-yl}acetic acid

rac-3-cyclopropyl-3-{[(1R,3R,5R)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)bicyclo[3.1.0]hexan-1-yl]formamido}propanoic acid

rac-4-[(1R,3R,5R)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)bicyclo[3.1.0]hexane-1-amido]oxolane-3-carboxylic acid

(2S,3R)-3-(benzyloxy)-2-{[(1RS,3RS,5RS)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)bicyclo[3.1.0]hexan-1-yl]formamido}butanoic acid