反应详情

温度

45 °C

Tetrakistriphenylphosphinepalladium (0) (44 mg, 0.038 mmol) and copper (I) iodide (29 mg, 0.152 mmol) were added to a degassed mixture of 5-chloro-4-(6-chloro-2′-fluoro-4-iodobiphenyl-3-yloxy)-N-(2,4-dimethoxybenzyl)-2-fluoro-N-(1,3,4-thiadiazol-2-yl)benzenesulfonamide (Preparation 93, 600 mg, 0.759 mmol), 4-(tributylstannyl)pyridazine (364 mg, 0.987 mmol), caesium fluoride (230 mg, 1.52 mmol), and acetonitrile (5.0 mL). The reaction was heated at 45° C. for 18 hours and then the cooled reaction mixture was diluted with ethyl acetate (30 mL) and filtered through Arbocel. The filtrate was then washed with water (5 mL), brine (5 mL), dried over MgSO4, filtered and evaporated. The residue was purified by preparative HPLC using acetonitrile/water as eluent (15/85 to 95/5, Phenomenex Luna C18 5 u 110 A 21.2×150 mm) to give the title compound (220 mg, 39%) as a brown foam.

1. customthe cooled reaction mixture
2. filtrationfiltered through Arbocel
3. washThe filtrate was then washed with water (5 mL), brine (5 mL)
4. dry with materialdried over MgSO4
5. filtrationfiltered
6. customevaporated
7. customThe residue was purified by preparative HPLC