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

Participants

Reaction Steps

Using the procedure described in Example 159B, phenyl 3-(1,3-difluoro-2-methylpropan-2-yl)-1-phenyl-1H-pyrazol-5-ylcarbamate from the previous step (0.186 g, 0.5 mmol) was reacted with 3-(6,7-dimethoxyquinazolin-4-yloxy)aniline from Example 113A (0.119 g, 0.4 mmol), and N,N-diisopropylethylamine (0.8 mL) in THF (6 mL) at 50° C. for 6 hours, to afford 1-[3-(1,3-difluoro-2-methylpropan-2-yl)-1-phenyl-1H-pyrazol-5-yl]-3-[3-(6,7-dimethoxyquinazolin-4-yloxy)phenyl]urea as solid (0.037 g, 16%). 1H NMR (300 MHz, DMSO-d6) δ 9.16 (s, 1H), 8.54 (s, 2H), 7.56 (m, 7H), 7.50 (d, 1H), 7.38 (s, 1H), 7.22 (m, 2H), 6.54 (s, 1H), 4.73 (m, 2H), 4.58 (m, 2H), 3.99 (s, 3H), 3.97 (s, 3H), 1.33 (s, 3H); LC-MS (ESI) m/z 575 (M+H)+.

Provenance & Evidence