2-Ethoxypyridine-5-boronic Acid → 8-(6-Ethoxy-pyridin-3-yl)-1-{3-methyl-1-[2-(4-methyl-piperazin-1-yl)-2-oxo-ethyl]-1H-pyrazol-4-yl}-1,3-dihydro-imidazo[4,5-c]quinolin-2-one

Participants

Reaction Steps

The title compound was synthesized in a similar manner as described for Example 1.1 using 8-bromo-1-{3-methyl-1-[2-(4-methyl-piperazin-1-yl)-2-oxo-ethyl]-1H-pyrazol-4-yl}-1,3-dihydro-imidazo[4,5-c]quinolin-2-one (Stage 133.1.1) and 6-ethoxypyridine-3-boronic acid (ABCR, Karlsruhe, Germany) to give the title compound as a white solid. (HPLC: tR 2.27 min (Method A); M+H=527 MS-ES; 1H-NMR (d6-DMSO, 400 MHz) 11.69 (s, br, 1H), 8.71 (s, 1H), 8.45-8.42 (m, 1H), 8.08-8.03 (m, 2H), 7.96-7.88 (m, 2H), 7.74-7.71 (m, 1H), 6.81-6.67 (m, 1H), 5.27-5.11 (m, 2H), 4.32 (q, 2H), 3.58-3.38 (m, 4H), 2.38-2.26 (m, 4H), 2.19 (s, 3H), 1.92 (s, 3H), 1.31 (t, 2H))

Provenance & Evidence