反应详情

温度

80 °C

To a solution of 4-chloro-6-(2-methoxyethoxy)quinazoline (0.199 g, 0.83 mmol) and 4-(benzo[d]oxazol-5-yloxy)-3-methylbenzenamine (0.200 g, 0.83 mmol) in isopropanol (2 mL) and DCE (2 mL). After heating to 80° C. for 12 hours, the mixture was concentrated under reduced pressure. The residue was partitioned between saturated NaHCO3 and EtOAc. The aqueous phase was extracted 2× with EtOAc, the combined organic phase was washed with brine, dried (Na2SO4), filtered and condensed. The residue was chromatographed to provide the product (0.100 g, 27%) as off-white solids. MS APCI (+) m/z 443 (M+1) detected; 1H NMR (400 MHz, DMSO-d6) δ 9.59 (s, 1H), 8.76 (s, 1H), 8.50 (s, 1H), 7.96 (s, 1H), 7.75 (m, 4H), 7.52 (dd, 1H), 7.26 (m, 1H), 7.10 (m, 1H), 6.97 (d, 1H), 4.30 (m, 2H), 3.76 (m, 2H), 3.36 (s, 3H), 2.24 (s, 3H).

1. concentrationthe mixture was concentrated under reduced pressure
2. customThe residue was partitioned between saturated NaHCO3 and EtOAc
3. extractionThe aqueous phase was extracted 2× with EtOAc
4. washthe combined organic phase was washed with brine
5. dry with materialdried (Na2SO4)
6. filtrationfiltered
7. customcondensed
8. customThe residue was chromatographed