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0 °C

N-{4-[4-formyl-5-(1-{[2-(trimethylsilyl)ethoxy]methyl}-1H-imidazol-2-yl)-1,3-thiazol-2-yl]pyridin-2-yl}acetamide (0.250 g, 0.564 mmol) was dissolved in tetrahydrofuran (20 mL) and cooled at 0° C. 1.0 M 4-Chlorophenylmagnesium bromide in ether (1.41 mL, 1.41 mmol) was added and the solution was stirred at 0° C. for 30 minutes. The reaction was quenched by the addition of MeOH (10 mL), and was evaporated under reduced pressure. The residue was purified using column chromatography (20 to 100% ethyl acetate in hexane) to give the title compound (0.150 g, 48%). LCMS: (FA) ES+, 556, 558. 1H NMR (400 MHz, CDCl3) δ: 8.69 (s, 1H), 8.34 (d, J=5.23 Hz, 1H), 8.21 (s, 1H), 7.65 (dd, J=5.23, 1.55 Hz, 1H), 7.31 (d, J=8.28 Hz, 2H), 7.21-7.16 (m, 3H), 7.07 (d, J=1.31 Hz, 1H), 6.26-6.15 (m, 1H), 5.30 (s, 1H), 3.46-3.36 (m, 2H), 2.24 (s, 3H), 0.94-0.84 (m, 2H), −0.02 (s, 9H).

1. customThe reaction was quenched by the addition of MeOH (10 mL)
2. customwas evaporated under reduced pressure
3. customThe residue was purified