反应详情

温度

65 °C

6-Iodo-3-methoxy-2-[(4-methoxybenzyl)oxy]pyridine obtained in Reference Example 4-33 (657 mg), cesium fluoride (269 mg), copper iodide (185 mg) and tetrakis(triphenylphosphine)palladium(0) (102 mg) were added to a solution of (5R)-5-[(E)-2-(4-tert-butylphenyl)-2-(tributylstannyl)ethenyl]-1-(2,4-dimethoxybenzyl)pyrrolidin-2-one obtained in Reference Example 4-26 (604 mg) in N,N-dimethylformamide (6 mL), and the mixture was stirred at 65° C. for 1.5 hours. Water and ethyl acetate were added to the reaction solution. After filtration through celite, the organic layer was washed with brine. The organic layer dried over anhydrous magnesium sulfate and filtered, after which the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (hexane:ethyl acetate=3:1→1:1) to give (5R)-5-[(E)-2-(4-tert-butylphenyl)-2-{5-methoxy-6-[(4-methoxybenzyl)oxy]-pyridin-2-yl}ethenyl]-1-(2,4-dimethoxybenzyl)pyrrolidin-2-one as a yellow oil (449 mg).

1. filtrationAfter filtration through celite
2. washthe organic layer was washed with brine
3. dry with materialThe organic layer dried over anhydrous magnesium sulfate
4. filtrationfiltered
5. customafter which the solvent was evaporated under reduced pressure
6. customThe residue was purified by silica gel column chromatography (hexane:ethyl acetate=3:1→1:1)