Ethylamine → 7-Chloro-5-(ethylamino)-3-methylpyrido[4,3-d]pyrimidin-4(3H)-one

Participants

Reaction Steps

To a solution of 5,7-dichloro-3-methylpyrido[4,3-d]pyrimidin-4(3H)-one (1.5 g, 6.5 mmol) in DCM (10 mL) was added an aqueous ethylamine solution (70%, 8 mL, 6.368 g, 141.3 mmol). After stirring for 8 hours at room temperature, the reaction mixture was evaporated under reduced pressure to afford the title compound. ESI-MS m/z 239.1 (MH+).

Provenance & Evidence