3-[(6,7-Dimethoxy-4-quinazolinyl)oxy]aniline → 1-(3-(6,7-dimethoxyquinazolin-4-yloxy)phenyl)-3-(3-isopropyl-1-(pyridin-3-yl)-1H-pyrazol-5-yl)urea

Participants

Reaction Steps

Using the procedure described in Example 306B, to a solution of 3-(6,7-dimethoxyquinazolin-4-yloxy)aniline (91 mg, 0.3 mmol), prepared as described in Example 113A, in THF (2 ml) was added DMAP (20 mg, 0.16 mmol) and phenyl 3-isopropyl-1-(pyridin-3-yl)-1H-pyrazol-5-ylcarbamate (110 mg, 0.34 mmol), described in the previous step. The crude was purified by silica gel chromatography (DCM/MeOH 2-10%) to afford 1-(3-(6,7-dimethoxyquinazolin-4-yloxy)phenyl)-3-(3-isopropyl-1-(pyridin-3-yl)-1H-pyrazol-5-yl)urea (91 mg, 58%) as a solid. 1H NMR (300 MHz, DMSO-d6) δ 1.22 (d, J=7 Hz, 6H), 2.89 (m, 1H), 3.99 (s, 6H), 6.35 (s, 1H), 6.92 (d, J=7.8 Hz, 1H), 7.19 (d, J=7.8 Hz, 1H), 7.34-7.39 (m, 2H), 7.52-7.55 (m, 3H), 7.97 (d, J=7.2 Hz, 1H), 8.55 (s, 1H), 8.58-8.60 (m, 2H), 8.77 (d, J=2.4 Hz, 1H), 9.19 (s, 1H); LC-MS (ESI) m/z 526 (M+H)+.

Provenance & Evidence