(1R,4R)-[(4-Acetylamino-cyclohexyl)-cyclopropyl-amino]-acetic acid

1-{4-[(2-Amino-ethyl)-methyl-amino]-piperidin-1-yl}-ethanone

1-{(S)-3-[(2-Amino-ethyl)-ethyl-amino]-pyrrolidin-1-yl}-ethanone

1-{(R)-3-[(2-Amino-ethyl)-ethyl-amino]-piperidin-1-yl}-ethanone

1-(2-{[(2-Amino-ethyl)-isopropyl-amino]-methyl}-pyrrolidin-1-yl)-ethanone

1-{3-[(2-Amino-ethyl)-isopropyl-amino]-pyrrolidin-1-yl}-ethanone

1-{3-[(2-Amino-ethyl)-isopropyl-amino]-piperidin-1-yl}-ethanone

1-{(S)-3-[(2-Amino-ethyl)-cyclopropyl-amino]-pyrrolidin-1-yl}-ethanone

1-{4-[(2-Amino-ethyl)-cyclopropyl-amino]-piperidin-1-yl}-ethanone

(1-Methyl-pyrrolidin-3-ylamino)-acetic acid

(4-Dimethylamino-cyclohexylamino)-acetic acid