反应详情

温度

60 °C

In the manner described in Example 21C, 1-(5-tert-butylisoxazol-3-yl)-3-(3-(6-(3-chloropropoxy)-7-methoxyquinazolin-4-yloxy)phenyl)urea (200 mg, 0.38 mmol) from Example 21B was reacted with morpholine (99 μL, 1.14 mmol), diisopropylethyl amine (199 μL, 1.14 mmol), and tetrabutyl ammonium iodide (140 mg, 0.38 mmol). After heating at 60° C. overnight the reaction was cooled to room temperature, and 10 mL of water added. The resulting precipitate was collected by filtration and purified by HPLC on a phenyl-hexyl reverse phase column eluting with an acetonitrile/water gradient 35-55% over 60 minutes. The major peak was collected, neutralized to pH-8 with saturated sodium bicarbonate and extracted twice with ethyl acetate. The extracts were combined, dried with magnesium sulfate, and concentrated to a solid. The solid was triturated with 20:1 methanol water and the solid removed by filtration and dried to give 72 mg of the title compound. 1H NMR (300 MHz, DMSO-d6) δ 9.57 (s, 1H), 8.99 (s, 1H), 8.55 (s, 1H), 7.58 (m, 2H), 7.39 (m, 2H), 7.26 (m, 1H), 6.99 (m, 1H), 6.47 (s, 1H), 4.25 (m, 2H), 3.99 (s, 3H), 3.58 (m, 4H), 2.5-2.35 (m, 6H), 1.97 (m, 2H), 1.30 (s, 9H). LC-MS (ESI) m/z 577 (M+H)+.

1. temperaturewas cooled to room temperature
2. filtrationThe resulting precipitate was collected by filtration
3. custompurified by HPLC on a phenyl-hexyl reverse phase column
4. washeluting with an acetonitrile/water gradient 35-55% over 60 minutes
5. customThe major peak was collected
6. extractionextracted twice with ethyl acetate
7. dry with materialdried with magnesium sulfate
8. concentrationconcentrated to a solid
9. customThe solid was triturated with 20:1 methanol water
10. customthe solid removed by filtration
11. customdried