4-(3,4-Dichloro-benzyl)-piperazine-1,3-dicarboxylic acid 1-tert-butyl ester

3-(3-Methyl-pyrazin-2-ylamino)-piperidine-1-carboxylic acid tert-butylester

1-(2-Chloro-6-fluoro-benzyl)-piperidine-2-carboxylic acid

[1-(1-Pyridin-2-yl-ethyl)-piperidin-3-ylmethyl]-carbamic acid tert-butyl ester

1-(3-Chloro-benzyl)-piperidine-3-carboxylic acid

Methyl-[1-(1-pyrazin-2-yl-ethyl)-piperidin-4-yl]-carbamic acid tert-butyl ester

1-(4-Chloro-5-methyl-pyrimidin-2-yl)-piperidin-4-ylamine hydrochloride

[1-(6-Chloro-2-methanesulfonyl-pyrimidin-4-yl)-piperidin-3-yl]-carbamic acid tert-butyl ester

1-(6-Chloro-2-methylsulfanyl-pyrimidin-4-yl)-azetidine-3-carboxylic acid

4-[Methyl-(1-pyrazin-2-yl-ethyl)-amino]-piperidine-1-carboxylic acid tert-butyl ester

[1-(1-Pyrazin-2-yl-ethyl)-piperidin-4-yl]-methanol