Triethylamine → 2-{6-[(4-Phenyl-1-piperidyl)methyl]-2-pyridyl}-4H-1,3-benzothiazine-4-one

Participants

Reaction Conditions

Reaction Steps

6-(4-Oxo-4H-1,3-benzothiazin-2-yl)-2-pyridylmethanesulfonate (0.30 g, 0.86 mmol), triethylamine (0.20 ml, 1.42 mmol) and 4-phenylpiperidine (0.15 g, 0.95 mmol) were dissolved in DMF (30 ml), and the mixture was stirred at 70° C. for 18 hrs. The reaction mixture was combined with ethylacetate and water. The organic layer was washed with saturated brine and dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was recrystallized from n-hexane-ethyl acetate to give the titled compound (0.16 g, 76%) as pale yellow crystals.

Provenance & Evidence