(S)-3-(Carboxymethyl-amino)-piperidine-1-carboxylic acid tert-butyl ester

(4-tert-Butoxycarbonylamino-cyclohexylamino)-acetic acid

3-(Carboxymethyl-amino)-piperidine-1-carboxylic acid tert-butyl ester

3-(Carboxymethyl-methyl-amino)-pyrrolidine-1-carboxylic acid tert-butyl ester

(R)-3-(Carboxymethyl-methyl-amino)-piperidine-1-carboxylic acid tert-butyl ester

(S)-2-[(Carboxymethyl-ethyl-amino)-methyl]-pyrrolidine-1-carboxylic acid tert-butyl ester

4-[(Carboxymethyl-ethyl-amino)-methyl]-piperidine-1-carboxylic acid tert-butyl ester

3-(Carboxymethyl-isopropyl-amino)-piperidine-1-carboxylic acid tert-butyl ester

(R)-3-(Carboxymethyl-cyclopropyl-amino)-pyrrolidine-1-carboxylic acid tert-butyl ester

2-(((1R,4R)-4-((tert-butoxycarbonyl)amino)cyclohexyl)-(cyclopropyl)amino)acetic acid

[4-(2-Chloro-acetylamino)-cyclohexyl]-carbamic acid tert-butyl ester

2-{[(2-Chloro-acetyl)-methyl-amino]-methyl}-pyrrolidine-1-carboxylic acid tert-butyl ester

3-[(2-Chloro-acetyl)-methyl-amino]-piperidine-1-carboxylic acid tert-butyl ester

(1R,4R)-{4-[(2-Chloro-acetyl)-methyl-amino]-cyclohexyl}-carbamic acid tert-butyl ester

3-{[(2-Chloro-acetyl)-ethyl-amino]-methyl}-pyrrolidine-1-carboxylic acid tert-butyl ester