反应详情

Combine 4-((6-chloro-3-(4-chloro-2-fluorobenzyl)-2-methylimidazo[1,2-b]pyridazin-8-yl)methyl)morpholin (0.36 g, 0.88 mmol), 1-(4-methoxybenzyl)-5-methyl-1H-pyrazol-3-amine (0.248 g, 1.3 equiv.), potassium carbonate (0.30 g, 2.5 equiv.), 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene (0.076 g, 0.15 equiv.), water (2 mL), and 1,4-dioxane (20 mL) in a round bottom flask. Degas thoroughly with nitrogen then add bis(dibenzylideneacetone)palladium (0.10 g, 0.2 equiv.). Attach a reflux condenser and place under nitrogen. Heat the reaction at reflux overnight. Pass reaction through a Celite plug. Wash the plug with EA. Transfer to a separatory funnel and wash with water. Wash the organic layer with aqueous sodium chloride, and dry over anhydrous magnesium sulfate. Filter and concentrate in vacuo. Purify on silica gel (EA→10% methanol:EA) to give the title compound (0.447 g, 86%) as a pale yellow solid. LCMS (4 min)=590.2, 591.2, M+1.

1. customDegas thoroughly with nitrogen
2. temperatureHeat
3. customthe reaction
4. temperatureat reflux overnight
5. customPass reaction through a Celite plug
6. washWash the plug with EA
7. washTransfer to a separatory funnel and wash with water
8. washWash the organic layer with aqueous sodium chloride
9. dry with materialdry over anhydrous magnesium sulfate
10. filtrationFilter
11. concentrationconcentrate in vacuo
12. customPurify on silica gel (EA→10% methanol:EA)