(6-Methoxypyridin-3-yl)boronic acid → HCID 67298492, compound

Participants

Reaction Conditions

Reaction Steps

To a 1 dram reaction vial was added 6-bromo-N-methyl-2-(pyridine-3-yl)quinazoline-4-amine (35 mg, 0.111 mmol), 6-methoxypyridin-3-ylboronic acid (20.4 mg, 0.133 mmol), Pd(APhos)2Cl2 (3.2 mg, 0.0041 mmol) and potassium phosphate monohydrate (77 mg, 0.33 mmol) in a mixture of dioxane-water (9:1, 2 mL). The reaction mixture was heated to 90° C. for 14 h after which it was cooled to room temperature and diluted with water (5 mL). The resultant precipitate was collected by filtration and recrystallized from methanol to give 6-(6-methoxypyridin-3-yl)-N-methyl-2-(pyridine-3-yl)quinazoline-4-amine as a pale yellow solid (19.1 mg, 51%). LCMS m/z=344 (M+1) (Method C) (retention time=2.01 min) 1H NMR (300 MHz, DMSO) δ 9.64 (d, J=1.3 Hz, 1H), 8.84-8.74 (m, 1H), 8.68 (dd, J=6.2, 1.7 Hz, 2H), 8.57 (d, J=1.6 Hz, 2H), 8.16 (ddd, J=14.4, 8.7, 2.2 Hz, 2H), 7.85 (d, J=8.7 Hz, 1H), 7.54 (dd, J=7.9, 4.8 Hz, 1H), 7.00 (d, J=8.7 Hz, 1H), 3.93 (s, 3H), 3.18 (d, J=4.3 Hz, 3H).

Provenance & Evidence