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

Participants

Reaction Steps

Using the procedure described in Example 159B, using phenyl 3-(2-ethoxypropan-2-yl)-1-phenyl-1H-pyrazol-5-ylcarbamate described in Example 168B (0.115 g, 0.33 mmol), 3-(6,7-dimethoxyquinazolin-4-ylthio)aniline from Example 115B (0.103 g, 0.33 mmol), and N,N-diisopropylethylamine (0.8 mL) in THF (6 mL) at 50° C. for 5 hours, to afford 1-[3-(6,7-dimethoxyquinazolin-4-ylthio)phenyl]-3-[3-(2-ethoxypropan-2-yl)-1-phenyl-1H-pyrazol-5-yl]urea as solid (123 mg, 64%). 1H NMR (300 MHz, DMSO-d6) δ 9.26 (br, 1H), 8.69 (s, 1H), 8.54 (s, 1H), 7.80 (s, 1H), 7.54 (m, 4H), 7.23-7.45 (m, 5H), 7.24 (d, 1H), 6.42 (s, 1H), 3.99 (s, 6H), 3.25 (q, 2H), 1.46 (s, 6H), 1.04 (t, 3H); LC-MS (ESI) m/z 539 (M-OEt)+.

Provenance & Evidence