Potassium Carbonate → 3-Methoxy-5-(2-phenyl-4-(pyridin-4-yl)thiazol-5-yl)pyridin-2-amine

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A mixture of 5-bromo-2-phenyl-4-(pyridin-4-yl)thiazole (20 mg, 0.062 mmol), 3-methoxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-amine (39 mg, 0.157 mmol), and aqueous 2.0 M K2CO3 solution (0.5 ml, 1 mmol) in dioxane (0.5 mL) was sparged with Ar. Pd(PPh3)4 (181 mg, 0.157 mmol) was added, the reaction was sealed and irradiated at 120° C. for 15 min. While allowing to cool to rt, the reaction partitioned and the resulting layers were separated. The aqueous phase was extracted with EtOAc (3×) and the combined organic phases were washed with brine, dried (Na2SO4), and concentrated. The resulting residue was purified by reverse phase HPLC to give, after freeze drying, 3-methoxy-5-(2-phenyl-4-(pyridin-4-yl)thiazol-5-yl)pyridin-2-amine as the TFA salt: LCMS (m/z): 361.0 (MH+), tR=0.58 min.

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