Potassium Carbonate → 1-(5-{3-[(5-Chloro-4-methylpyrimidin-2-yl)amino]-5-methylphenyl}-1,3-thiazol-2-yl)cyclobutanol

Participants

Reaction Conditions

Reaction Steps

A flask was charged with a stir bar, 2,5-dichloro-4-methylpyrimidine (63 mg, 0.38 mmol), Intermediate 15 (100 mg, 0.38 mmol), Pd2(dba)3 (35 mg, 0.038 mmol), XPhos (92 mg, 0.19 mmol), and potassium carbonate (106 mg, 0.768 mmol). The vial was evacuated and backfilled with argon three times. Fully degassed tent-amyl alcohol (1.3 mL) was added to the flask, which was sealed and stirred at 90° C. overnight. The reaction was then cooled to room temperature, diluted with DCM and directly purified by Chromatography on silica gel (0-100% ethyl acetate in hexanes) to provide 1-(5-{3-[(5-chloro-4-methylpyrimidin-2-yl)amino]-5-methylphenyl}-1,3-thiazol-2-yl)cyclobutanol (65 mg, 0.17 mmol, 44%) as a dark brown solid. MS ESI: [M+H]+ m/z 387.1 1H NMR (500 MHz, dmso) δ 9.81 (s, 1H), 8.44 (s, 1H), 7.97 (s, 1H), 7.91 (s, 1H), 7.47 (s, 1H), 7.08 (s, 1H), 6.51 (s, 1H), 2.58-2.50 (m, 2H), 2.45 (s, 3H), 2.37-2.27 (m, 5H), 1.93-1.82 (m, 2H). rhSYK activity=+++

Provenance & Evidence