3-Pyridinylboronic acid → 1-Benzyl-7-pyridin-3-yl-3,4-dihydro-1H-pyrido[2,3-b]pyrazin-2-one

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Reaction Steps

1-Benzyl-7-iodo-3,4-dihydro-1H-pyrido[2,3-b]pyrazin-2-one (100 mg) was reacted with 3-pyridine boronic acid as in General Procedure 4A to give the title compound as a light yellow solid (60% yield). M.p. 58° C., LCMS: m/z=317.16 (M+H+), 1H-NMR (CD3OD, 400 MHz) δ 4.42 (s, 2H), 7.22-7.31 (m, 2H), 7.32-7.38 (m, 4H), 7.50 (s, 1H), 7.85-7.92 (m, 1H), 8.02 (s, 1H), 8.39 (d, J=8.1 Hz, 1H), 8.65-8.75 (m, 1H), 8.75-8.90 (m, 1H).

Provenance & Evidence