2-[(2-Amino-acetylamino)-methyl]-piperidine-1-carboxylic acid tert-butyl ester

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

4-[(2-Amino-acetyl)-ethyl-amino]-piperidine-1-carboxylic acid tert-butyl ester

(R)-3-(Carboxymethyl-methyl-amino)-pyrrolidine-1-carboxylic acid benzyl ester

(S)-2-[(Carboxymethyl-methyl-amino)-methyl]-pyrrolidine-1-carboxylic acid benzyl ester

[(4-Benzyloxycarbonylamino-cyclohexyl)-methyl-amino]-acetic acid

(S)-2-Amino-N-((S)-1-benzyl-piperidin-3-yl)-3,N-dimethyl-butyramide

(S)-2-Amino-N-((S)-1-benzyl-pyrrolidin-3-yl)-N-ethyl-3-methyl-butyramide

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

[(S)-1-(2-Amino-ethyl)-pyrrolidin-3-yl]-cyclopropyl-carbamic acid benzyl ester

[1-(2-Chloro-acetyl)-pyrrolidin-2-ylmethyl]-carbamic acid benzyl ester