反应详情

To a solution of N-[(2S)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,3-dihydro-1H-inden-2-yl]-2-propanesulfonamide (250 mg, 0.68 mmol) in dry 1,4 dioxane (5 ml), polymer supported Pd(PPh3)4 (14 mg, 0.5 mmol/g, 0.007 mmol) was added along with 3-bromo-2-fluoro-6-methylpyridine (194 mg, 1.02 mmol) and 680 μl of a 2M Na2CO3 solution in water. The resulting mixture was heated at 90° degrees for 3 hours. Then after cooling the resin was removed by filtration and then the solvent was removed under reduced pressure. The residue was taken up with DCM, washed with water and loaded on a 25M+ silica cartridge eluating with a cyclohexane/AcOEt 75/25 mixture. 175 mg of title compound were recovered as white solid (74%). Due to the use of chiral Intermediate 7, the final compound is believed to be N-[(2S)-5-(2-fluoro-6-methyl-3-pyridinyl)-2,3-dihydro-1H-inden-2-yl]-2-propanesulfonamide.

1. temperatureThe resulting mixture was heated at 90° degrees for 3 hours
2. temperatureThen after cooling the resin
3. customwas removed by filtration
4. customthe solvent was removed under reduced pressure
5. washwashed with water
6. custom175 mg of title compound were recovered as white solid (74%)