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

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

N-{4-[(2-Amino-ethyl)-cyclopropyl-amino]-cyclohexyl}-acetamide

(1R,4R)-N-{4-[(2-Amino-ethyl)-cyclopropyl-amino]-cyclohexyl}-acetamide

((S)-1-Methyl-piperidin-3-ylamino)-acetic acid

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

[Methyl-(1-methyl-pyrrolidin-3-ylmethyl)-amino]-acetic acid

[Methyl-(1-methyl-piperidin-4-ylmethyl)-amino]-acetic acid

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

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

[Isopropyl-(1-methyl-pyrrolidin-2-ylmethyl)-amino]-acetic acid