反应详情

To a stirred solution of 5-bromo-N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-3-(ethyl(tetrahydro-2H-pyran-4-yl)amino)-2-methylbenzamide (5.0 g, 10 mmol) and (4-formylphenyl)boronic acid (2.35 g, 15.8 mmol) in dioxane/water (30 mL/10 mL) was added Na2CO3 (4.01 g, 37.9 mmol). The solution was purged with argon for 15 min., Pd(PPh3)4 (1.21 g, 1.05 mmol) and the mixture was heated at 100° C. for 2 h. The mixture was allowed to cool to room temperature, diluted with water and extracted with 10% MeOH/CH2Cl2. The combined organic layers were dried over sodium sulphate and the solvent removed under reduced pressure. The resulting crude material was purified by column chromatography over silica gel to afford N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-5-(ethyl(tetrahydro-2H-pyran-4-yl)amino)-4′-formyl-4-methyl-[1,1′-biphenyl]-3-carboxamide (3.5 g, 66%).

1. customThe solution was purged with argon for 15 min.
2. extractionextracted with 10% MeOH/CH2Cl2
3. dry with materialThe combined organic layers were dried over sodium sulphate
4. customthe solvent removed under reduced pressure
5. customThe resulting crude material was purified by column chromatography over silica gel