反应详情

Dissolve 5-(3-amino-4-fluorophenylethynyl)-nicotinonitrile, (prepared as described in EXAMPLE 160), (0.2 g, 0.8 mmol) in anhydrous pyridine. Add a solution of methanesulfonyl chloride (0.1 g, 0.88 mmol) in tetrahydrofuran to the reaction and stir overnight at room temperature. Concentrate and dissolve the crude reaction in ethyl acetate and water. Wash the organic layer with water, an aqueous saturated solution of sodium chloride, dry (potassium carbonate), filter, concentrate and purify (silica gel chromatography, eluting with 95:5 to 80:20 dichloromethane:ethyl acetate), to give the title compound as a tan solid (50 mg, 20%).

1. customto the reaction
2. concentrationConcentrate
3. dissolutiondissolve the crude
4. customreaction in ethyl acetate
5. washWash the organic layer with water
6. dry with materialan aqueous saturated solution of sodium chloride, dry (potassium carbonate)
7. filtrationfilter
8. concentrationconcentrate
9. custompurify
10. wash(silica gel chromatography, eluting with 95:5 to 80:20 dichloromethane:ethyl acetate)