(S)-2-Amino-N-(1-benzyl-piperidin-2-ylmethyl)-3-methyl-butyramide

(S)-2-Amino-N-(1-benzyl-piperidin-3-ylmethyl)-N-cyclopropyl-3-methyl-butyramide

(1R,4R)- (4-Acetylamino-cyclohexylamino)-acetic acid

[((R)-1-Acetyl-piperidin-3-yl)-methyl-amino]-acetic acid

[((R)-1-Acetyl-piperidin-3-yl)-ethyl-amino]-acetic acid

[(1-Acetyl-piperidin-2-ylmethyl)-ethyl-amino]-acetic acid

[(1-Acetyl-pyrrolidin-2-ylmethyl)-isopropyl-amino]-acetic acid

[(1-Acetyl-pyrrolidin-2-ylmethyl)-cyclopropyl-amino]-acetic acid

1-[3-(2-Hydroxy-ethylamino)-piperidin-1-yl]-ethanone

1-{2-[(2-Hydroxy-ethylamino)-methyl]-piperidin-1-yl}-ethanone

1-{(R)-3-[(2-Hydroxy-ethyl)-methyl-amino]-pyrrolidin-1-yl}-ethanone