Phosphorus oxychloride → HCID 58456107, compound

Participants

Reaction Steps

The product of Step 1 (145 mg, 0.37 mmol) was taken up in dioxane (2 mL) and phosphorus oxychloride (1.02 mL, 11 mmol) was added. The mixture was heated at reflux for 1.5 hours. The reaction was then cooled to room temperature, poured over ice, and quenched by dropwise addition of 10 N aqueous sodium hydroxide (until pH=8). Ethyl acetate was added and the layers were separated. The aqueous layer was extracted once more with ethyl acetate. The combined organics were dried over magnesium sulfate, filtered, and concentrated under reduced pressure. The residue was purified by Chromatography on silica gel (0-50% ethyl acetate/hexanes) to afford 114 mg (0.28 mmol, 75%) of 2-(5-{3-[(4-chloropyrimidin-2-yl)amino]-5-methylphenyl}-1,3-thiazol-2-yl)-1,1,1-trifluoropropan-2-ol as a white solid. MS ESI: [M+H]+ m/z 415.0. 1H NMR (500 MHz, DMSO-d6) δ 10.10 (s, 1H), 8.47 (d, J=5 Hz, 1H), 8.08 (s, 1H), 7.88 (s, 1H), 7.67 (s, 1H), 7.50 (s, 1H), 7.17 (s, 1H), 6.99 (d, J=5 Hz, 1H), 2.32 (s, 3H), 1.76 (s, 3H). rhSYK activity=+++

Provenance & Evidence