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4-(4,6-Dimethyl-pyrimidin-2-yl)-piperazine-1,3-dicarboxylic acid 1-tert-butyl ester

4-(5-Fluoro-pyrimidin-2-yloxymethyl)-piperidine-1-carboxylic acid tert-butyl ester

4-(5-Fluoro-pyrimidin-2-ylamino)-piperidine-1-carboxylic acid tert-butyl ester

1-(5-Fluoro-pyrimidin-2-yl)-piperidine-4-carboxylic acid

[1-(5-Fluoro-pyrimidin-2-yl)-piperidin-4-yl]-carbamic acid tert-butyl ester

2-(5-Fluoro-pyrimidin-2-yloxymethyl)-piperidine-1-carboxylic acid tert-butyl ester

4-(5-Fluoro-pyrimidin-2-yloxy)-piperidine-1-carboxylic acid tert-butyl ester

4-(5-Chloro-pyrimidin-2-ylamino)-piperidine-1-carboxylic acid tert-butyl ester

4-(5-Fluoro-pyrimidin-2-yl)-piperazine-1,3-dicarboxylic acid 1-tert-butyl ester

1-(5-Chloropyrimidin-2-yl)piperidine-3-carboxylic acid