2-Methyl-4-(tributylstannyl)pyridine → N-(5-(4-Acetylpiperazin-1-yl)pyridin-2-yl)-2-(2',3-dimethyl-[2,4'-bipyridin]-5-yl)acetamide

Participants

Reaction Conditions

Reaction Steps

To the mixture of N-(5-(4-acetylpiperazin-1-yl)pyridin-2-yl)-2-(6-chloro-5-methylpyridin-3-yl)acetamide 148-1 (80 mg, 0.21 mmol) and 2-methyl-4-(tributylstannyl)pyridine 148-2 (75 mg, 0.21 mmol) in DMF (1.5 mL) was added [1,1′-Bis(diphenylphosphino)ferrocene] dichloropalladium(II) (30 mg, 0.18 mmol). The reaction was stirred at 110° C. for 20 hours. After cooling down to room temperature, the reaction mixture was purified by reverse-phase HPLC to give N-(5-(4-acetylpiperazin-1-yl)pyridin-2-yl)-2-(2′,3-dimethyl-2,4′-bipyridin-5-yl)acetamide 148 as off-white solid. MS m/z 445.2 (M+1); 1H NMR 400 MHz (DMSO-d6) δ10.57 (s, 1H), 8.49 (d, 1H), 8.40 (d, 1H), 7.98 (d, 1H), 7.87 (d, 1H), 7.64 (d, 1H), 7.42 (s, 1H), 7.36-7.34 (m, 2H), 3.70 (s, 2H), 3.50 (b, 4H), 3.09 (t, 2H), 3.02 (t, 2H), 2.49 (s, 3H), 2.28 (s, 3H), 1.97 (s, 3H).

Provenance & Evidence