反应详情

Into a 50-mL 3-necked round-bottom flask purged and maintained with an inert atmosphere of nitrogen, was placed a solution of 3-(methylthio)-1-phenyl-6-(piperazin-1-yl)-1H-indazole hydrochloride (200 mg, 0.55 mmol, 1.00 equiv) in N,N-dimethylformamide (5 mL), triethylamine (140.3 mg, 1.39 mmol, 2.51 equiv), isonicotinic acid (82 mg, 0.67 mmol, 1.20 equiv), and the resulting solution was stirred for 10 min at room temperature. HATU (631 mg, 1.66 mmol, 3.00 equiv) was added and resulting solution was stirred for an additional 2 h at room temperature. The resulting solution was diluted with ethyl acetate (20 mL). The resulting mixture was washed with brine (2×15 mL). The resulting mixture was dried over anhydrous sodium sulfate and concentrated under vacuum. The residue was applied onto a silica gel column with ethyl acetate:petroleum ether:THF (1:1:1) to yield (4-(3-(methylthio)-1-phenyl-1H-indazol-6-yl)piperazin-1-yl)(pyridin-4-yl)methanone as a light yellow solid.

1. customInto a 50-mL 3-necked round-bottom flask purged
2. temperaturemaintained with an inert atmosphere of nitrogen
3. customresulting solution
4. stirringwas stirred for an additional 2 h at room temperature
5. washThe resulting mixture was washed with brine (2×15 mL)
6. dry with materialThe resulting mixture was dried over anhydrous sodium sulfate
7. concentrationconcentrated under vacuum