Potassium Phosphate, Tribasic → HCID 53327737, compound

Participants

Reaction Conditions

Reaction Steps

Palladium acetate (177 mg, 0.79 mmol), 2-dicyclohexylphosphino-2′,4′,6′-triisopropylbiphenyl (751 mg, 1.58 mmol), tripotassium phosphate (3.34 g, 15.7 mmol), and 1-methylindole-5-boronic acid pinacol ester (3.04 g, 11.8 mmol) were added to a solution of N-[5-(2-furyl)-1,3,4-oxadiazol-2-yl]-3-iodobenzenecarboxamide (3.00 g, 7.87 mmol) prepared in Reference Example 3 in 1-butanol (75 mL), followed by stirring at 100° C. overnight in an argon atmosphere. The reaction solution was concentrated. A saturated aqueous solution of sodium chloride was added to the residue, followed by extraction with methylene chloride and drying over anhydrous sodium sulfate. The solvent was distilled off, and methanol was added to the residue. The precipitated solid was filtered off. The residue obtained by distilling the solvent off was subjected to purification by silica gel column chromatography and recrystallization from methanol to obtain the title compound (1.10 g, 2.86 mmol) (yield: 36%).

Provenance & Evidence