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

[(S)-3-(Benzyloxycarbonyl-methyl-amino)-pyrrolidin-1-yl]-acetic acid

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

[(S)-3-(Benzyloxycarbonyl-isopropyl-amino)-pyrrolidin-1-yl]-acetic acid

{3-[(Benzyloxycarbonyl-isopropyl-amino)-methyl]-pyrrolidin-1-yl}-acetic acid

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

[4-(Benzyloxycarbonyl-cyclopropyl-amino)-cyclohexylamino]-acetic acid

(1R,4R)-2-[4-(Benzyl-methyl-amino)-cyclohexylamino]-ethanol

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

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

2-{4-[(Benzyl-isopropyl-amino)-methyl]-piperidin-1-yl}-ethanol