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

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

2-{[Ethyl-(2-hydroxy-ethyl)-amino]-methyl}-piperidine-1-carboxylic acid benzyl ester

(1R,4R)-{4-[(2-Hydroxy-ethyl)-isopropyl-amino]-cyclohexyl}-carbamic acid benzyl ester

3-{[Cyclopropyl-(2-hydroxy-ethyl)-amino]-methyl}-pyrrolidine-1-carboxylic acid benzyl ester

{2-[(2-Amino-ethyl)-methyl-amino]-cyclohexyl}-carbamic acid benzyl ester

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

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

4-{[(2-Amino-ethyl)-isopropyl-amino]-methyl}-piperidine-1-carboxylic acid benzyl ester

3-[(2-Amino-ethyl)-cyclopropyl-amino]-piperidine-1-carboxylic acid benzyl ester

1-((S)-2-Amino-propionyl)-piperidin-3-one