反应详情

温度

100 °C

To a solution containing the product from Example 92D (0.50 g, 0.70 mmol) in N,N-dimethylformamide (7.0 mL) were added lithium chloride (0.30 g, 7.08 mmol), dichlorobis(triphenylphosphine)palladium(II) (0.150 g, 0.214 mmol), and 3-tributylstannylpyridine (0.776 g, 2.11 mmol), and the mixture was heated to 100° C. for 18 hours. The reaction was filtered, diluted with ethyl acetate and washed with water, and brine, dried over MgSO4, filtered and concentrated. The residue was chromatographed on silica gel eluting with a gradient starting with chloroform and ending with 25% ethyl acetate in chloroform to give the title compound (0.365 g).

1. filtrationThe reaction was filtered
2. additiondiluted with ethyl acetate
3. washwashed with water, and brine
4. dry with materialdried over MgSO4
5. filtrationfiltered
6. concentrationconcentrated
7. customThe residue was chromatographed on silica gel eluting with a gradient