Diisopropylethylamine → 1-[3-(6,7-dimethoxyquinazolin-4-yloxy)phenyl]-3-[3-(2-ethoxypropan-2-yl)-1-phenyl-1H-pyrazol-5-yl]urea

Participants

Reaction Conditions

Reaction Steps

Using the procedure described in Example 159B, phenyl 3-(2-ethoxypropan-2-yl)-1-phenyl-1H-pyrazol-5-ylcarbamate (0.115 g, 0.33 mmol), 3-(6,7-dimethoxyquinazolin-4-yloxy)aniline from Example 113A (0.098 g, 0.33 mmol), and N,N-diisopropylethylamine (0.8 mL) in THF (6 mL) were heated at 50° C. for 5 hours, to afford 1-[3-(6,7-dimethoxyquinazolin-4-yloxy)phenyl]-3-[3-(2-ethoxypropan-2-yl)-1-phenyl-1H-pyrazol-5-yl]urea as solid (0.113 g, 60%). 1H NMR (300 MHz, DMSO-d6) δ 9.25 (br, 1H), 8.55 (s, 1H), 8.54 (s, 1H), 7.54 (m, 6H), 7.39 (m, 3H), 7.18 (d, 1H), 6.93 (d, 1H), 6.41 (s, 1H), 3.77 (s, 3H), 3.98 (s, 3H), 3.25 (q, 2H), 1.45 (s, 6H), 1.03 (t, 3H); LC-MS (ESI) m/z 523 (M−OEt)+.

Provenance & Evidence