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1-Cbz-2-methyl-piperidin-4-one

1-Cbz-2-phenyl-piperidin-4-one

1-Cbz-3-(2-hydroxy-ethyl)-piperidine

1-Cbz-3-(2-oxo-ethyl)-piperidine

1-Cbz-3,3-difluoropyrrolidine

1-Cbz-3,3-dimethyl-piperazine

4-Fluoro-3-(trifluoromethyl)benzamide

1-Cbz-4-(2-hydroxy-ethyl)-piperidine

1-Cbz-4-(3-hydroxy-propyl)-piperidine

1-Cbz-4-(4-carboxy-phenyl)-piperidine