Dimethylformamide → 5-(2-Methoxy-ethoxy)-1H-pyrrolo[2,3-c]pyridine-2-carboxylic acid (1-isopropyl-piperidin-4-yl)-amide

Participants

Reaction Steps

To a solution of 820 mg (3.47 mmol) of 5-(2-Methoxy-ethoxy)-1H-pyrrolo[2,3-c]pyridine-2-carboxylic acid and 745 mg (3.47 mmol) 1-isopropyl-piperidin-4-ylamine dihydrochloride in 30 mL absolute DMF 1.13 g (3.47 mmol) TOTU and 1.81 mL (10.41 mmol) DIPEA were added and the mixture was stirred for 4 h at room temperature. The solvent was removed in vacuo, the residue dissolved in CH2Cl2 and the CH2Cl2 phase washed with a saturated NaHCO3 solution. The organic phase was concentrated and the residue purified by chromatography over silica gel using CH2Cl2/MeOH/HOAc/H2O=90/10/1/1 as eluent. The fractions containing the product were combined and concentrated. The residue was dissolved in CH2Cl2 and the CH2Cl2 phase was washed with a saturated NaHCO3 solution. The phases were separated and the organic phase dried over Na2SO4. After filtration the solvent was removed in vacuo. Yield: 461 mg.

Provenance & Evidence