Tetrahydrofuran → 1-(1-(6-(1-(2-ethoxyethyl)-1H-pyrazol-4-yl)pyridazin-3-yl)piperidin-4-yl)-6-fluoroindoline

Participants

Reaction Steps

To a mixture of 1-(1-(6-(1H-pyrazol-4-yl)pyridazin-3-yl)piperidin-4-yl)-6-fluoroindoline (55 mg, 0.15 mmol, 1.0 equiv) and 2-ethoxyethylbromide (0.17 mL, 1.5 mmol, 10 equiv) was added THF (2 mL) and DMF (0.5 mL). NaH (30 mg, 60% in mineral oil, 0.75 mmol, 5 equiv) was then added. The resulting mixture was stirred at room temperature for 1.5 h and then poured into Et2O/H2O (20 mL/20 mL). The organic layer was washed with brine (20 mL), dried (Na2SO4), and filtered. The solvent was removed and the resulting residue was purified by column using 90-100% EtOAc/hexane as the eluent to yield 1-(1-(6-(1-(2-ethoxyethyl)-1H-pyrazol-4-yl)pyridazin-3-yl)piperidin-4-yl)-6-fluoroindoline.

Provenance & Evidence