70411-83-5

To a stirred solution of 4-cyano-2(1H)-pyridinone (0.25 g; 2.08 mmol; 1 eq.) in DMF (5 mL) was added sodium hydride (0.12 g; 3.12 mmol; 1.5 eq.) and the resultant mixture was stirred for 10 min at 0 °C. Then iodomethane (0.4 mL; 6.25 mmol; 3 eq.) was adde