Potassium Carbonate → HCID 22256626, compound

Participants

Reaction Steps

To the suspension of 7-[(2,4-dichloro-5-methoxyphenyl)amino]-2-[(trimethylsilyl)ethynyl]thieno[3,2-b]pyridine-6-carbonitrile (97 mg, 0.22 mmol) in 10 mL of methanol is added potassium carbonate (46 mg, 0.33 mmol) The mixture is stirred at room temperature for 30 minutes, concentrated in vacuo and then partitioned between water and ethyl acetate. The organic layer is dried over magnesium sulfate, filtered and concentrated in vacuo. The residue is purified by flash column chromatography eluting with 1:1 ethyl acetate:hexane to provide 38 mg of 7-[(2,4-dichloro-5-methoxyphenyl)amino]-2-ethynylthieno[3,2-b]pyridine-6-carbonitrile as white crystals, mp 198-200° C.; 1H NMR (DMSO-d6) δ 3.85 (s, 3H), 5.01 (s, 1H), 7.38 (s, 1H), 7.72 (s, 1H), 7.79 (s, 1H), 8.63 (s, 1H), 9.85 (s, 1H); MS 372.0 (M−H)−.

Provenance & Evidence