(3-Acetamidophenyl)boronic acid → N-(3-(6-chloro-5-cyano-4-(4-phenoxyphenyl)pyridin-2-yl)phenyl)acetamide

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

A mixture of 2,6-dichloro-4-(4-phenoxyphenyl)nicotinonitrile (51 mg, 0.149 mmol, from Step 2 of Example 8), 3-acetamidophenylboronic acid (29.4 mg, 0.164 mmol), palladium tetrakis(triphenylphosphine) (15.12 mg, 0.015 mmol) and potassium phosphate tribasic monohydrate (0.299 mL, 0.598 mmol) in N,N-dimethylformamide (1.5 mL) was heated to 90° C. under nitrogen for 2 h. After cooling to room temperature, the mixture was diluted with ethyl acetate (80 mL), washed with water (10 mL), brine (10 mL), dried (MgSO4) and concentrated. Silica gel chromatography, eluting with 5-40% ethyl acetate in hexanes, gave N-(3-(6-chloro-5-cyano-4-(4-phenoxyphenyl)pyridin-2-yl)phenyl)acetamide as white solid (28 mg, 42% yield). 1H NMR (400 MHz, CDCl3) δ ppm 8.26 (1H, s), 7.79-7.89 (1H, m), 7.77 (1H, s), 7.67-7.73 (1H, m), 7.58-7.66 (2H, m), 7.50-7.57 (1H, m), 7.37-7.47 (3H, m), 7.17-7.24 (1H, m), 7.05-7.16 (4H, m), 2.22 (3H, s); MS (ES+) m/z: 440 (M±H); LC retention time: 4.165 min (analytical HPLC Method A).

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