[4-(tert-Butoxycarbonyl-cyclopropyl-amino)-cyclohexylamino]-acetic acid

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

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

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

[1-(2-Amino-ethyl)-piperidin-2-ylmethyl]-ethyl-carbamic acid benzyl ester

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

[1-(2-Amino-ethyl)-piperidin-2-ylmethyl]-isopropyl-carbamic acid benzyl ester

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

[1-(2-Chloro-acetyl)-piperidin-4-yl]-carbamic acid benzyl ester

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

[1-(2-Chloro-acetyl)-piperidin-2-ylmethyl]-methyl-carbamic acid benzyl ester