Triethylamine → 3,3,3-Trifluoropropane-1-sulfonic acid 4-[1-(2,4-dichlorophenyl)-3-methyl-4-oxo-5-piperidin-1-yl-4,5,6,7-tetrahydro-1H-pyrrolo[3,2-c]pyridine-2-yl]phenyl ester

Participants

Reaction Steps

To a solution of 1-(2,4-dichlorophenyl)-2-(4-hydroxyphenyl)-3-methyl-5-piperidin-1-yl-1,5,6,7-tetrahydropyrrolo[3,2-c]pyridine-4-one (0.40 g, 0.85 mmol) in dichloromethane (20 ml) at 0° C. was added triethylamine (0.14 ml, 1.02 mmol) followed by 3,3,3-trifluoropropanesulfonyl chloride (0.20 g, 1.02 mmol). The reaction mixture was subsequently stirred at room temperature for two hours. Concentration and purification by flash chromatography (heptane:EtOAc gradient) afforded 200 mg (37%) of the title compound as a colorless solid.

Provenance & Evidence