2-Ethoxypyridine-4-boronic acid → 1-(1,3-Dimethyl-1H-pyrazol-4-yl)-8-(2-ethoxy-pyridin-4-yl)-3-methyl-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-(1,3-dimethyl-1H-pyrazol-4-yl)-3-methyl-1,3-dihydro-imidazo[4,5-c]quinolin-2-one (Intermediate A, 40 mg, 0.107 mmol) and 2-ethoxy-4-pyridinylboronic acid (Combi-Blocks, San Diego, USA, 22.4 mg, 0.134 mmol) to give the title compound as a white solid. (HPLC: tR 2.45 min (Method A); M+H=415 MS-ES; 1H-NMR (d6-DMSO, 400 MHz) 8.99 (s, 1H), 8.24-8.16 (m, 2H), 8.14-8.07 (m, 1H), 8.02-7.94 (m, 1H), 7.66-7.59 (m, 1H), 7.09-7.02 (m, 1H), 6.87-6.80 (m, 1H), 4.32 (q, 2H), 3.94 (s, 3H), 3.57 (s, 3H), 1.96 (s, 3H), 1.34 (t, 3H))

Provenance & Evidence