1-(3-(6,7-Dimethoxyquinazolin-4-yloxy)phenyl)-3-(3-isopropylisoxazol-5-yl)urea → 1-(3-Cyclopropylisoxazol-5-yl)-3-(3-(6,7-dimethoxyquinazolin-4-yloxy)phenyl)urea

Participants

Reaction Steps

3-(6,7-dimethoxyquinazolin-4-yloxy)aniline from Example 113A (89 mg, 0.3 mmol) and phenyl 3-cyclopropylisoxazol-5-ylcarbamate from the previous step (88 mg, 0.36 mmol) were reacted according to the method described for 1-(3-(6,7-dimethoxyquinazolin-4-yloxy)phenyl)-3-(3-isopropylisoxazol-5-yl)urea in Example 122B to afford 1-(3-cyclopropylisoxazol-5-yl)-3-(3-(6,7-dimethoxyquinazolin-4-yloxy)phenyl)urea as a colorless solid (65 mg, 49%). 1H NMR (300 MHz, DMSO-d6) δ 10.17 (brs, 1H), 9.05 (brs, 1H), 8.56 (s, 1H), 7.56 (s, 2H), 7.38-7.44 (m, 2H), 7.29 (m, 1H), 6.99 (m, 1H), 5.77 (s, 1H), 3.98-4.00 (2×s, 6H), 1.91 (m, 1H), 0.94-0.99 (m, 2H), 0.71-0.75 (m, 2H); LC-MS (ESI) m/z 448 (M+H)+.

Provenance & Evidence