1-[4-(2-Amino-ethoxy)-piperidin-1-yl]-ethanone

[4-(2-Amino-ethoxy)-cyclohexyl]-dimethyl-amine

2-Chloro-N-(4-oxo-cyclohexyl)-acetamide

1-(2-Amino-acetyl)-piperidin-4-one

2-Amino-N-(4-bromo-cyclohexyl)-acetamide

(S)-2-[(2-Amino-acetylamino)-methyl]-pyrrolidine-1-carboxylic acid tert-butyl ester

[4-(2-Amino-acetylamino)-cyclohexyl]-carbamic acid tert-butyl ester

4-{[(2-Amino-acetyl)-methyl-amino]-methyl}-piperidine-1-carboxylic acid tert-butyl ester

(1R,4R)-{4-[(2-Amino-acetyl)-methyl-amino]-cyclohexyl}-carbamic acid tert-butyl ester

(R)-3-[(2-Amino-acetyl)-ethyl-amino]-piperidine-1-carboxylic acid tert-butyl ester