Amino Acid Derivatives

tert-butyl 5-bromo-6-methyl-9-oxo-1,3,8,12-tetrazatricyclo[8.4.0.0²⁷]tetradeca-2,4,6-triene-12-carboxylate

tert-butyl (4R)-5-amino-4-(5-bromo-1-oxo-isoindolin-2-yl)-5-oxo-pentanoate

ethyl (2S)-2-(benzyloxycarbonylamino)-2-spiro[chromane-3,1'-cyclopropane]-4-yl-acetate

methyl (2S)-2-(tert-butoxycarbonylamino)-3-(3-iodo-1-bicyclo[1.1.1]pentanyl)propanoate

methyl (2R)-2-(tert-butoxycarbonylamino)-3-(3-iodo-1-bicyclo[1.1.1]pentanyl)propanoate

O1-tert-butyl O2-methyl (2S,5R)-5-[(2-chloro-4-cyano-phenoxy)methyl]pyrrolidine-1,2-dicarboxylate

(2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-3-(3-piperidyl)propanoic acid

(2R)-2-(tert-butoxycarbonylamino)-3-[3-[(tert-butoxycarbonylamino)methyl]phenyl]propanoic acid

2-(tert-butoxycarbonylamino)-3-[3-[(tert-butoxycarbonylamino)methyl]phenyl]propanoic acid

(2S)-2-(tert-butoxycarbonylamino)-3-[3-[(tert-butoxycarbonylamino)methyl]phenyl]propanoic acid

(2R)-2-[9H-fluoren-9-ylmethoxycarbonyl(methyl)amino]-3-(1-methylcyclobutyl)propanoic acid

2-[[(1R,3S,4S,6R)-2-tert-butoxycarbonyl-3-[(2S)-2-cyanopyrrolidine-1-carbonyl]-2-azabicyclo[2.2.1]heptan-6-yl]oxy]acetic acid

2-{[(9H-fluoren-9-yl)methoxy]carbonyl}-7-oxa-2-azaspiro[3.5]nonane-1-carboxylic acid

2-(benzyloxycarbonylamino)-2-(1-tert-butoxycarbonyl-4-piperidyl)acetic acid

2-(6-bromo-1-oxo-spiro[3H-isoquinoline-4,1'-cyclopropane]-2-yl)-N-(2-oxopyrrolidin-3-yl)acetamide

3,3-dicyclopropyl-2-(9H-fluoren-9-ylmethoxycarbonylamino)propanoic acid