(2R)-2-[(1-cyanocyclopentyl)formamido]propanoic acid

(2R)-2-[(2,2,3,3-tetramethylcyclopropyl)formamido]propanoic acid

(2R)-2-[(2,4-dichlorophenyl)formamido]-4-methylpentanoic acid

(2R)-2-[(2-iodo-3-methylphenyl)formamido]propanoic acid

(2R)-2-[(2-methoxyphenoxy)methyl]pyrrolidine

(2R)-2-[(2-methoxyphenyl)formamido]propanoic acid

(2R)-2-[(2R)-2-amino-3-methylbutanamido]-3-phenylpropanoic acid hydrochloride

(2R)-2-[(2R)-2-amino-3-methylbutanamido]propanoic acid

(2R)-2-[(2R)-2-aminopent-4-ynamido]propanoic acid hydrochloride

(2R)-2-[(2R)-2-aminopentanamido]-3-(4-hydroxyphenyl)propanoic acid hydrochloride

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

(2R)-2-[(2S)-2-amino-3-methylbutanamido]propanoic acid; trifluoroacetic acid

(2R)-2-[(2S)-2-amino-3-phenylpropanamido]-3-phenylpropanoic acid; trifluoroacetic acid

(2R)-2-[(2S)-2-amino-4-methylpentanamido]-3-methylbutanoic acid hydrochloride

(2R)-2-[(2S)-2-aminopentanamido]-3-(4-hydroxyphenyl)propanoic acid hydrochloride

(2R)-2-[(2S)-oxiran-2-yl]oxirane

(2R)-2-[(3,4-dimethoxyphenyl)methyl]pyrrolidine

(2R)-2-[(3,5-dinitrophenyl)formamido]-2-phenylacetic acid

(2R)-2-[(4-bromophenyl)formamido]propanoic acid

(2R)-2-[(4-chlorophenoxy)methyl]oxirane

(2R)-2-[(4-methoxyphenoxy)methyl]oxirane

(2R)-2-[(4-{[(2-amino-4-oxo-4,8-dihydropteridin-6-yl)methyl]amino}phenyl)formamido]pentanedioic acid

(2R)-2-[(5-bromopyridin-2-yl)amino]butan-1-ol

(2R)-2-[(5-bromopyridin-2-yl)formamido]propanoic acid

(2R)-2-[(5-chlorothiophen-2-yl)formamido]-3-methylbutanoic acid

(2R)-2-[(5-fluoro-2,4-dinitrophenyl)amino]propanamide

(2R)-2-[(adamantan-1-yl)formamido]pentanedioic acid

(2R)-2-[(benzyloxy)methyl]oxirane

(2R)-2-[(benzyloxy)methyl]pyrrolidine

(2R)-2-[(difluoromethoxy)methyl]pyrrolidine hydrochloride

(2R)-2-[(ethoxycarbonyl)amino]-3-phenylpropanoic acid

(2R)-2-[(methoxycarbonyl)amino]-3,3-dimethylbutanoic acid

(2R)-2-[(methoxycarbonyl)amino]-3-methylbutanoic acid

(2R)-2-[(methylcarbamoyl)amino]propanoic acid

(2R)-2-[(methylsulfanyl)methyl]pyrrolidine hydrochloride

(2R)-2-[(naphthalen-2-yloxy)methyl]oxirane

(2R)-2-[(oxan-4-yl)formamido]propanoic acid

(2R)-2-[(prop-2-yn-1-yloxy)methyl]pyrrolidine hydrochloride

(2R)-2-[(propan-2-yl)amino]propan-1-ol

(2R)-2-[(propan-2-yloxy)methyl]oxirane

(2R)-2-[(pyridin-2-yl)formamido]propanoic acid

(2R)-2-[(tert-butoxy)methyl]piperidine hydrochloride

(2R)-2-[(tert-butoxy)methyl]pyrrolidine hydrochloride

(2R)-2-[(tert-butoxy)methyl]pyrrolidine-1-carboxamide

(2R)-2-[(tert-butyldimethylsilyl)oxy]propan-1-ol