2-Bromopyridine → HCID 57860593, compound

Participants

Reaction Steps

A solution of the compound of Example 77 (284 mg, 0.60 mmol), 2-iodopyridine (0.13 mL, 1.2 mmol) and potassium carbonate (208 mg, 1.5 mmol) in DMF (3.0 mL) was stirred at 90° C. for 5.5 hr. 2-Bromopyridine (0.23 mL, 2.5 mmol) and triethylamine (0.49 mL, 3.5 mmol) were added to the reaction mixture, and the mixture was stirred under microwave irradiation at 165° for 1 hr. The reaction mixture was diluted with water, and extracted twice with ethyl acetate. The extract was washed with brine, dried over magnesium sulfate, and concentrated under reduced pressure. The residue was purified by aminosilica gel chromatography (eluate; ethyl acetate/hexane=30/70-100/0) and recrystallized from THF-diethyl ether to give the title compound (38 mg, 12%) as a white solid.

Provenance & Evidence