Carbamate → HCID 44243438, compound

Participants

Reaction Steps

Prepared from 3-(6,7-dimethoxyquinazolin-4-yloxy)aniline from Example 113A (89 mg, 0.30 mmol) and the carbamate from the previous step (90 mg, 0.332 mmol) according to the method described for 1-(3-(6,7-dimethoxyquinazolin-4-yloxy)phenyl)-3-(3-isopropylisoxazol-5-yl)urea in Example 122B, except the reaction mixture was stirred at room temperature for 3 h. Purification via silica gel chromatography eluting with 100% dichloromethane to 10% methanol in dichloromethane afforded 1-(3-(2-cyanopropan-2-yl)isoxazol-5-yl)-3-(3-(6,7-dimethoxyquinazolin-4-yloxy)phenyl)urea as a colorless solid (55 mg, 39%). 1H NMR (300 MHz, DMSO-d6) δ 10.51 (brs, 1H), 9.12 (brs, 1H), 8.57 (s, 1H), 7.56-7.57 (m, 2H), 7.31-7.45 (m, 3H), 7.01 (m, 1H), 6.27 (s, 1H), 4.00 (s, 6H), 1.68 (s, 6H); LC-MS (ESI) m/z 475 (M+H)+.

Provenance & Evidence