3-[(Carboxymethyl-ethyl-amino)-methyl]-pyrrolidine-1-carboxylic acid benzyl ester

[(2-Benzyloxycarbonylamino-cyclohexyl)-ethyl-amino]-acetic acid

4-(Carboxymethyl-isopropyl-amino)-piperidine-1-carboxylic acid benzyl ester

2-[(Carboxymethyl-cyclopropyl-amino)-methyl]-piperidine-1-carboxylic acid benzyl ester

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

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

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

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

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

4-[Cyclopropyl-(2-hydroxy-ethyl)-amino]-piperidine-1-carboxylic acid benzyl ester

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