Sodium Carbonate → HCID 44251152, compound

Participants

Reaction Steps

0.48 g (3.88 mmol) of 3-pyridineboronic acid, 1.3 g (2.85 mmol) of 2-[((2-[(3-bromophenyl)amino]-2-oxoethoxy)acetyl)amino]-5-chlorobenzoic acid.methyl ester, 95.9 mg (0.08 mmol) of tetrakis(triphenyl phosphine)palladium (0), and 0.41 g (3.88 mmol) of 2N sodium carbonate were heated under reflux for 8 hours in 9.2 mL of toluene and 2.6 mL of methanol. After completion of the reaction, the solvent was distilled off under reduced pressure, and ethyl acetate was added to separate the solid by filtration. Thereafter, the organic layer was washed with a saturated sodium chloride solution, and dried over anhydrous sodium sulfate. The solvent was distilled off under reduced pressure. The resulting crude product was separated and purified using silica gel column chromatography to give 5-chloro-2-([(2-oxo-2-([3-(pyridin-3-yl)phenyl]amino)ethoxy)acetyl]amino)benzoic acid.methyl ester (yield: 62%).

Provenance & Evidence