Methyl iodide → HCID 22724429, compound

Participants

Reaction Steps

A mixture of 4-(3-biphenylyl)-2-(2-carboxyethyl)-3-oxo-3,4-dihydropyrido[2,3-b]pyrazine. (80 mg), iodomethane (0.04 ml) and potassium carbonate (90 mg) in N,N-dimethylformamide (2 ml) was stirred at room temperature for 1 hour. Then the mixture was poured into a mixture of ethyl acetate and aqueous sodium bicarbonte. The organic phase was separated, washed with aqueous sodium bicarbonate and brine, dried over magnesium sulfate and concentrated. The residue was crystallized from methanol to give 4-(3-biphenylyl)-2-(2-methoxycarbonylethyl)-3-oxo-3,4-dihydropyrido[2,3-b]pyrazine (71 mg).

Provenance & Evidence