1-Methyl-4-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)piperazine → 1-Benzenesulfonyl-7-[6-(4-methylpiperazin-1-yl)pyridin-3-yl]-1,2,3,4-tetrahydropyrido[2,3-b]pyrazine

Participants

Reaction Steps

1-Benzenesulfonyl-7-iodo-1,2,3,4-tetrahydropyrido[2,3-b]pyrazine (88 mg) was reacted with 1-Methyl-4-[5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)pyridin-2-yl]piperazine as in General Procedure 4A to give the title compound as a yellow foam (72% yield). M.p. (foam), LCMS: m/z=450-98 (M+H+), 1H-NMR (CDCl3, 400 MHz) δ 2.39 (s, 3H), 2.60 (t, J=5.0 Hz, 4H), 2.98-3.03 (m, 2H), 3.64 (t, J=5.0 Hz, 4H), 3.80 (t, J=5.0 Hz, 2H), 5.16 (bs, 1H), 6.73 (d, J=8.8 Hz, 1H), 7.40-7.45 (m, 2H), 7.51-7.54 (m, 1H), 7.62 (d, J=8.6 Hz, 2H), 7.67 (dd, J=8.8 Hz, 2.5 Hz, 1H), 8.08 (s, 1H), 8.40 (d, J=2.0 Hz, 1H).

Provenance & Evidence