1,1,1-Trifluoro-N-phenylmethanesulfonamide → 2-(4-Piperidin-1-yl-but-1-ynyl)-5-piperidin-1-ylmethyl-pyridine

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Reaction Steps

Trifluoro-methanesulfonic acid 5-piperidin-1-ylmethyl-pyridin-2-yl ester. A solution of 6-piperidin-1-ylmethyl-pyridin-3-ol (0.225 g, 1.17 mmol), N-phenyltrifluoromethanesulfonamide (0.50 g, 1.41 mmol), and TEA (0.50 mL, 3.50 mmol) in DCM (20 mL) was heated at reflux for 18 h. The solvent was removed and chromatography of the residue (SiO2: 0-3% 2 M NH3 in MeOH/DCM) gave the title compound as a solid (0.036 g, 95%).

Provenance & Evidence