反应详情

温度

68 °C

A suspension of cesium carbonate (0.54 g, 1.66 mmol), 5-[5-(4-chloro-benzyl)-[1,3,4]-oxadiazol-2-yl]-2-methyl-phenol (0.36 g, 1.20 mmol) (from Example 40 supra) in tetrahydrofuran/N,N-dimethylformamide (5:2, 21 mL) was heated at 68° C. for 2 hours. 3-Bromomethyl-4-chloro-thieno[3,2-c]pyridine-7-carboxylic acid ethyl ester (0.36 g, 1.08 mmol) (from Example 1 supra) was added. Heating was continued for 2 hours. The reaction mixture was partitioned between ethyl acetate and water. The aqueous phase was extracted with ethyl acetate (2×). The combined organic phase washed with water and brine, dried (magnesium sulfate) and concentrated. The residue washed with ethyl acetate and dried to give 4-chloro-3-{5-[5-(4-chloro-benzyl)-[1,3,4]oxadiazol-2-yl]-2-methyl-phenoxymethyl}-thieno[3,2-c]pyridine-7-carboxylic acid ethyl ester. (Yield 0.17 g, 26%).

1. temperatureHeating
2. customThe reaction mixture was partitioned between ethyl acetate and water
3. extractionThe aqueous phase was extracted with ethyl acetate (2×)
4. washThe combined organic phase washed with water and brine
5. dry with materialdried (magnesium sulfate)
6. concentrationconcentrated
7. washThe residue washed with ethyl acetate
8. customdried