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

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

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

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

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

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

(S)-2-Amino-1-{(S)-2-[(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

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

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

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