2-Methoxy-6-(tributylstannyl)pyrazine → 6-(6-methoxypyrazin-2-yl)-8-(4-morpholinophenylamino)-2,7-naphthyridin-1(2H)-one

Participants

Reaction Steps

6-chloro-8-(4-morpholinophenylamino)-2,7-naphthyridin-1(2H)-one (30 mg, 0.084 mmol) was dissolved in DMF (1 mL) in a microwave vial and 2-methoxy-6-(tributylstannyl)pyrazine (40 mg, 0.1 mmol) was added followed by PdCl2dppf (6.1 mg, 0.0084 mmol) at room temperature. The vial was flushed with nitrogen and closed the cap and subjected to microwave irradiation at 135 C for 60 minutes. The reaction mixture was diluted with DMSO and purified by prep HPLC. The compound was isolated as a TFA salt. 1H NMR (400 MHz, DMSO-d6) δ 11.14 (s, 1H), 8.96 (s, 1H), 8.33 (s, 1H), 7.68 (s, 1H), 7.67 (d, 2H, J=8.8 Hz), 7.38 (m, 1H), 6.95 (d, 2H, J=8.8 Hz), 6.57 (d, 1H, J=7.2 Hz), 4.0 (s, 3H), 3.69 (t, 4H, J=4.8 Hz), 3.04 (t, 4H, J=4.8 Hz); MS m/z 431.2 (M+1).

Provenance & Evidence