反应详情

Compound 22 was synthesized by condensation of 5-methyl-2(1H)-pyridone (327.4 mg, 3 mmol) with 4-bromopyridine hydrochloride (778 mg, 4 mmol) in the presence of CuI (60 mg, 0.3 mmol) and K2CO3 (1.36 g, 10 mmol) in DMF (3 ml) at 135° C. overnight. The reaction mixture was diluted with 10% ammonia (15 ml) and extracted with ethyl acetate. Organic extract was washed with saturated sodium chloride, dried over magnesium sulfate and evaporated. Column chromatography (5% MeOH-DCM) afforded 197 mg (35%) of the target compound as a yellowish solid. The 1H NMR spectra was consistent with the structure of Compound 22.

1. extractionextracted with ethyl acetate
2. extractionOrganic extract
3. washwas washed with saturated sodium chloride
4. dry with materialdried over magnesium sulfate
5. customevaporated