[1-((S)-2-Amino-3-methyl-butyryl)-piperidin-3-yl]-isopropyl-carbamic acid tert-butyl ester

{3-[(tert-Butoxycarbonyl-isopropyl-amino)-methyl]-piperidin-1-yl}-acetic acid

[(R)-3-(tert-Butoxycarbonyl-cyclopropyl-amino)-piperidin-1-yl]-acetic acid

[1-(2-Hydroxy-ethyl)-pyrrolidin-2-ylmethyl]-carbamic acid benzyl ester

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

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

[(R)-1-(2-Hydroxy-ethyl)-pyrrolidin-3-yl]-methyl-carbamic acid benzyl ester

[(R)-1-(2-Hydroxy-ethyl)-piperidin-3-yl]-methyl-carbamic acid benzyl ester

Ethyl-[(R)-1-(2-hydroxy-ethyl)-pyrrolidin-3-yl]-carbamic acid benzyl ester

Ethyl-[1-(2-hydroxy-ethyl)-piperidin-4-yl]-carbamic acid benzyl ester

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