反应详情

A mixture of (RS)-1-[2-(4-bromo-1H-benzoimidazol-2-ylmethyl)-piperidin-1-yl]-1-[5-(4-fluorophenyl)-2-methylthiazol-4-yl]methanone, E66 (216 mg, 0.42 mmol) and copper(I) cyanide (76 mg, 0.84 mmol) in N-methylpyrrolidinone (15 ml) was heated at reflux for 3 h. The reaction mixture was cooled, poured into water and extracted with ethyl acetate (2×). Solid sodium chloride was added to the aqueous layer which was further extracted with ethyl acetate (2×). The combined organic extracts were washed with brine, dried (Na2SO4) and the solvent removed in vacuo. The residue was Chromatographed (silica gel, 10-100% ethyl acetate-hexane then 1-20% methanol-ethyl acetate). Further purification by HPLC (Supercosil ABZ+, 5-95% acetonitrile containing 0.1% trifluoroacetic acid-water containing 0.1% trifluoroacetic acid) afforded the title compound as a pale brown amorphous solid (5.3 mg, 3%).

1. temperaturewas heated
2. temperatureat reflux for 3 h
3. temperatureThe reaction mixture was cooled
4. extractionextracted with ethyl acetate (2×)
5. additionSolid sodium chloride was added to the aqueous layer which
6. extractionwas further extracted with ethyl acetate (2×)
7. washThe combined organic extracts were washed with brine
8. dry with materialdried (Na2SO4)
9. customthe solvent removed in vacuo
10. customThe residue was Chromatographed (silica gel, 10-100% ethyl acetate-hexane
11. customFurther purification by HPLC (Supercosil ABZ+, 5-95% acetonitrile containing 0.1% trifluoroacetic acid-water containing 0.1% trifluoroacetic acid)