(1R,4R)-[(4-Benzyloxycarbonylamino-cyclohexyl)-methyl-amino]-acetic acid

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

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

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

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

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

[1-(2-Amino-ethyl)-piperidin-4-yl]-cyclopropyl-carbamic acid benzyl ester

2-Amino-N-[4-(benzyl-isopropyl-amino)-cyclohexyl]-acetamide

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

(S)-2-Amino-1-{4-[(benzyl-isopropyl-amino)-methyl]-piperidin-1-yl}-3-methyl-butan-1-one

(S)-2-Amino-1-{3-[(benzyl-cyclopropyl-amino)-methyl]-pyrrolidin-1-yl}-3-methyl-butan-1-one

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

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

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

(S)-3-((S)-2-Amino-propionylamino)-pyrrolidine-1-carboxylic acid tert-butyl ester