Dimethyl Sulfoxide → Methyl 6-(((5-methyl-3-phenylisoxazol-4-yl)methyl)amino)nicotinate

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A mixture of (5-methyl-3-phenyl-4-isoxazolyl)-methylamine (200 mg, 1.06 mmol), methyl 6-chloronicotinate (182 mg, 1.06 mmol), N,N-diisopropyl ethyl amine (364 μL, 2.13 mmol) and DMSO (2 mL) was heated in the microwave to 160° C. for 0.5 h. It was diluted with ethyl acetate (8 mL) and washed with aqueous sodium carbonate (saturated, 8 mL), water (8 mL) and brine (8 mL). The combined aqueous layers were extracted with ethyl acetate (10 mL) and the combined organic layers were dried over sodium sulfate. Concentration and purification by chromatography (SiO2, heptane:ethyl acetate=100:0 to 50:50) afforded the title compound (158 mg, 46%) as a light yellow oil. MS: m/e=324.3 [M+H]+.

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