(2S)-2-{[(tert-butoxy)carbonyl]amino}-2-cycloheptylacetic acid

(S)-2-{(2S,3R)-3-[(9H-fluoren-9-yl)methoxy]carbonylamino-2-hydroxy-4-phenylbutanamido}-4-methylpentanoic acid

(2R,4S)-4-((tert-Butoxycarbonyl)amino)pyrrolidine-2-carboxylic acid

(R)-2-((tert-Butoxycarbonyl)amino)-2-(tetrahydro-2H-pyran-4-yl)acetic acid

1-(tert-butoxycarbonyl)-4-(phenylaMino)piperidine-4-carboxylic acid

17-(t-Butyloxycarbonyl-amino)-9-aza-3,6,12,15-tetraoxa-10-on-heptadecanoic acid

(2R)-([{(benzyloxy)carbonyl}amino]methyl)-3-methylbutanoic acid

(alphaS)-alpha-[[2-(4-Morpholinyl)acetyl]amino]benzenebutanoyl-L-leucyl-L-phenylalanine methyl ester

(2R,4S)-4-{[(tert-butoxy)carbonyl]amino}pyrrolidine-2-carboxylic acid

(S)-2-((((9H-Fluoren-9-yl)Methoxy)carbonyl)aMino)-3-hydroxypropanoic acid hydrate

(S)-4-(Tert-butoxycarbonyl)-1,4-oxazepane-2-carboxylic acid

(3S,4R)-1-(tert-butoxycarbonyl)-4-(4-tert-butylphenyl)pyrrolidine-3-carboxylic acid

CIS-3-BOC-AMINO-TETRAHYDROPYRAN-4-CARBOXYLIC ACID

N-CBZ-3-OXOAZETIDINE