Diisopropylethylamine → 1-[3-(1,3-difluoro-2-methylpropan-2-yl)-1-phenyl-1H-pyrazol-5-yl]-3-[3-(6,7-dimethoxyquinazolin-4-ylthio)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 as described in Example 167B (0.186 g, 0.5 mmol), 3-(6,7-dimethoxyquinazolin-4-ylthio)aniline from Example 115B (0.125 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-ylthio)phenyl]urea as solid (95 mg, 40%). 1H NMR (300 MHz, DMSO-d6) δ 9.27 (s, 1H), 8.69 (s, 1H), 8.56 (s, 1H), 7.80 (s, 1H), 7.23-7.80 (m, 10H), 6.51 (s, 1H), 4.71 (m, 2H), 4.55 (m, 2H), 3.99 (s, 6H), 1.31 (s, 3H); LC-MS (ESI) m/z 591 (M+H)+.

Provenance & Evidence