反应详情

温度

60 °C

In a sealed reaction flask 1-(5-tert-butylisoxazol-3-yl)-3-(3-(6-(3-chloropropoxy)-7-methoxyquinazolin-4-yloxy)phenyl)urea (200 mg, 0.38 mmol) was dissolved in 3 mL of anhydrous DMF, to this solution tetrabutylammonium iodide (140 mg, 0.38 mmol) was added followed by N-methylpiperazine (0.127 mL, 1.14 mmol) and the reaction heated at 60° C. for 56 hours. At the end of this time 10 mL of water was added and the resulting solid removed by filtration. The solid was purified by reversed phase HPLC using a phenyl-hexyl reverse phase column with a 30-50% ACN/H2O gradient over 60 minutes. The appropriate peak was concentrated, basified with saturated sodium bicarbonate and extracted twice with ethyl acetate. The extracts were dried with magnesium sulfate, filtered and concentrated to afford 1-(5-tert-butylisoxazol-3-yl)-3-(3-(7-methoxy-6-(3-(4-methylpiperazin-1-yl)propoxy)quinazolin-4-yloxy)phenyl)urea as a solid weighing 15.75 mg. 1H NMR (300 MHz, DMSO-d6) δ 9.58 (s, 1H), 9.00 (s, 1H), 8.55 (s, 1H), 7.58 (d, 2H), 7.4 (m, 2H), 7.26 (m, 1H), 6.98 (m, 1H), 6.47 (s, 1H), 4.2 (m, 2H), 3.99 (s, 3H), 2.5-2.2 (m, 9H), 2.11 (s, 3H), 1.99 (m, 2H), 1.27 (s, 9H). LC-MS (ESI) m/z 590 (M+H)+.

1. additionwas added
2. customthe resulting solid removed by filtration
3. customThe solid was purified by reversed phase HPLC
4. customover 60 minutes
5. concentrationThe appropriate peak was concentrated
6. extractionextracted twice with ethyl acetate
7. dry with materialThe extracts were dried with magnesium sulfate
8. filtrationfiltered
9. concentrationconcentrated