[1-((S)-2-Amino-3-methyl-butyryl)-piperidin-4-yl]-cyclopropyl-carbamic acid benzyl ester

[4-(Benzyloxycarbonylamino-methyl)-piperidin-1-yl]-acetic acid

{(S)-2-[(Benzyloxycarbonyl-ethyl-amino)-methyl]-pyrrolidin-1-yl}-acetic acid

{2-[(Benzyloxycarbonyl-ethyl-amino)-methyl]-piperidin-1-yl}-acetic acid

(1R,4R)-[4-(Benzyloxycarbonyl-ethyl-amino)-cyclohexylamino]-acetic acid

[2-(Benzyloxycarbonyl-ethyl-amino)-cyclohexylamino]-acetic acid

{2-[(Benzyloxycarbonyl-cyclopropyl-amino)-methyl]-piperidin-1-yl}-acetic acid

2-{(S)-2-[(Benzyl-methyl-amino)-methyl]-pyrrolidin-1-yl}-ethanol

2-[3-(Benzyl-ethyl-amino)-pyrrolidin-1-yl]-ethanol

2-[(S)-3-(Benzyl-isopropyl-amino)-pyrrolidin-1-yl]-ethanol

2-[(S)-3-(Benzyl-isopropyl-amino)-piperidin-1-yl]-ethanol