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

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

{4-[Cyclopropyl-(2-hydroxy-ethyl)-amino]-cyclohexyl}-carbamic acid benzyl ester

(S)-3-[(2-Amino-ethyl)-methyl-amino]-pyrrolidine-1-carboxylic acid benzyl ester

(S)-2-Amino-N-(1-benzyl-piperidin-4-yl)-3,N-dimethyl-butyramide

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

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

[1-(2-Chloro-acetyl)-pyrrolidin-2-ylmethyl]-isopropyl-carbamic acid tert-butyl ester

[1-(2-Chloro-acetyl)-pyrrolidin-3-yl]-carbamic acid benzyl ester

2-Amino-1-[3-(benzyl-cyclopropyl-amino)-pyrrolidin-1-yl]-ethanone

2-Amino-1-[3-(benzyl-cyclopropyl-amino)-piperidin-1-yl]-ethanone

(S)-2-Amino-N-[4-(benzyl-isopropyl-amino)-cyclohexyl]-3-methyl-butyramide

(S)-3-[(2-Amino-acetyl)-isopropyl-amino]-pyrrolidine-1-carboxylic acid tert-butyl ester

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

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