反应详情

Using the procedure described in Example 306B, to a solution of 3-(6,7-dimethoxyquinazolin-4-yloxy)aniline (89 mg, 0.3 mmol), prepared as described in Example 113A, in THF (3.3 ml) was added DMAP (20 mg, 0.16 mmol) and phenyl 3-(1,1-difluoroethyl)-1-phenyl-1H-pyrazol-5-ylcarbamate (103 mg, 0.3 mmol), described in the previous step. The crude was purified by silica gel chromatography (DCM/MeOH 0-15%) and triturated in diethyl ether to afford 1-(3-(1,1-difluoroethyl)-1-phenyl-1H-pyrazol-5-yl)-3-(3-(6,7-dimethoxyquinazolin-4-yloxy)phenyl)urea (102 mg, 62%) as a solid. 1H NMR (300 MHz, DMSO-d6) δ 1.99 (t, J=18 Hz, 3H), 3.99 (s, 6H), 6.66 (s, 1H), 6.94 (d, J=9.6 Hz, 1H), 7.18 (d, J=9.6 Hz, 1H), 7.35-7.40 (m, 2H), 7.51-7.60 (m, 7H), 8.55 (s, 1H), 8.66 (s, 1H), 9.26 (s, 1H); LC-MS (ESI) m/z 547 (M+H)+.

1. customprepared
2. customThe crude was purified by silica gel chromatography (DCM/MeOH 0-15%)
3. customtriturated in diethyl ether