反应详情

温度

25 °C

To a suspension of 60% sodium hydride (267.5 mg, 6.9 mmol) in N,N-dimethylformamide (2.5 mL) was added cyclopropanesulfonamide (0.83 g, 6.9 mmol) at room temperature. The resulting mixture was stirred at 25° C. for 1 h to afford Solution A79. A solution of 8,8-dimethyl-6-(3-morpholin-4-yl-phenyl)-5,6,7,8-tetrahydro-[1,5]naphthyridine-2-carboxylic acid (256.9 mg, 0.7 mmol) and 1,1′-carbonyldiimidazole (221.0 mg, 1.4 mmol) in N,N-dimethylformamide (2.0 mL) was stirred at 70° C. for 1 h and cooled to room temperature to afford Solution B79. Solution B79 was added to Solution A79 and the resulting mixture was stirred at 25° C. for 1 h. To the reaction mixture was added water (0.5 mL). The mixture was filtered to remove the insoluble solid, and the filtrate was purified by Waters automated flash system (column: Xterra 30 mm×100 mm, sample manager 2767, pump 2525, detector: ZQ mass and UV 2487, solvent system: acetonitrile and 0.1% ammonium hydroxide in water) afforded cyclopropanesulfonic acid [8,8-dimethyl-6-(3-morpholin-4-yl-phenyl)-5,6,7,8-tetrahydro-[1,5]naphthyridine-2-carbonyl]-amide (98.7 mg, 30%) as a white solid: MS (ESI) M+1=471.2.

1. customto afford Solution A79
2. temperaturecooled to room temperature
3. customto afford Solution B79
4. additionSolution B79 was added to Solution A79
5. stirringthe resulting mixture was stirred at 25° C. for 1 h
6. filtrationThe mixture was filtered
7. customto remove the insoluble solid
8. customthe filtrate was purified by Waters automated flash system (column: Xterra 30 mm×100 mm, sample manager 2767, pump 2525, detector: ZQ mass and UV 2487, solvent system: acetonitrile and 0.1% ammonium hydroxide in water)