反应详情

A mixture of 3-amino-4-{(3S,5R)-3-[(tert-butoxycarbonyl)amino]-5-methylpiperidin-1-yl}-6,7-dihydro-5H-cyclopenta[b]pyridin-7-yl acetate (30 mg, 0.074 mmol), 6-[2,6-difluoro-4-(tetrahydro-2H-pyran-3-yloxy)phenyl]-5-fluoropyridine-2-carboxylic acid (26 mg, 0.074 mmol) and HATU (56 mg, 0.15 mmol) in DMF (0.3 mL) and DIPEA (39 μL, 0.22 mmol) was stirred at room temperature for 2 h. The reaction mixture was quenched with water and the resulting mixture was extracted with EtOAc (2 times). The combined organic phases were washed with brine, dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by purified by column chromatography on silica gel using CombiFlash® apparatus eluting with EtOAc/hexanes (50-100%) to afford an amide intermediate, 4-{(3S,5R)-3-[(tert-butoxycarbonyl)amino]-5-methylpiperidin-1-yl}-3-[({6-[2,6-difluoro-4-(tetrahydro-2H-pyran-3-yloxy)phenyl]-5-fluoropyridin-2-yl}carbonyl)amino]-6,7-dihydro-5H-cyclopenta[b]pyridin-7-yl acetate.

1. customThe reaction mixture was quenched with water
2. extractionthe resulting mixture was extracted with EtOAc (2 times)
3. washThe combined organic phases were washed with brine
4. dry with materialdried over Na2SO4
5. concentrationconcentrated under reduced pressure
6. customThe residue was purified
7. customby purified by column chromatography on silica gel using CombiFlash® apparatus
8. washeluting with EtOAc/hexanes (50-100%)