Toluene → HCID 22031561, compound

Participants

Reaction Steps

736 mg 3-(4-fluorophenyl)-1-trityl-1H-4-pyrazolylboronic acid (compound in Production Example 25), 550 mg 6-bromo-3-[5-(methylsulfanyl)-2-thienyl]imidazo[1,2-a]-pyridine (compound in Production Example 58) and 100 mg tetrakis (triphenylphosphine)palladium were stirred at 80° C. for 3 hours in a solution mixture of 5 mL toluene, 5 mL ethanol and 2.5 mL of 2 N aqueous sodium carbonate under nitrogen atmosphere. The reaction solution was extracted with ethyl acetate, the organic layer was dried over magnesium sulfate, the solvent was removed, and the resulting residue was purified by NH silica gel column chromatography (hexane/ethyl acetate) to give 685 mg of the title compound (pale greenish yellow crystals; recrystallization solvent, ethyl acetate/methanol).

Provenance & Evidence