phenyl (3-(tert-butyl)-1-(p-tolyl)-1H-pyrazol-5-yl)carbamate → 1-(3-tert-butyl-1-p-tolyl-1H-pyrazol-5-yl)-3-(3-(6,7-dimethoxyquinazolin-4-yloxy)phenyl)urea

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Reaction Steps

A mixture of phenyl 3-tert-butyl-1-p-tolyl-1H-pyrazol-5-ylcarbamate (0.14 g, 0.4 mmol), 3-(6,7-dimethoxyquinazolin-4-yloxy)aniline from Example 113 (0.119 g, 0.4 mmol) and DMAP (0.025 g) in THF (6 mL) was stirred at room temperature overnight. The reaction was quenched by adding DCM and concentrated. To the residue was added Et2O to give 1-(3-tert-butyl-1-p-tolyl-1H-pyrazol-5-yl)-3-(3-(6,7-dimethoxyquinazolin-4-yloxy)phenyl)urea as solid (0.181 g, 82%). 1H NMR (300 MHz, DMSO-d6) δ 1.25 (s, 9H), 2.37 (s, 3H), 3.98 (s, 3H), 3.99 (s, 3H), 6.33 (s, 1H), 6.93 (d, 1H), 7.16 (d, 1H), 7.32-7.40 (m, 6H), 7.55 (d, 2H), 8.41 (s, 1H), 8.55 (s, 1H), 9.23 (s, 1H); LC-MS (ESI) m/z 553 (M+H)+.

Provenance & Evidence