反应详情

The product of Example 5, Step 2 (250 mg, 0.835 mmol, 1.00 equiv), 5-amino-7-chloroindazole (140 mg, 0.835 mmol, 1.0 equiv), and EDC (191 mg, 1.00 mmol, 1.20 equiv) were suspended in 2.0 mL DMF. Et3N (0.140 mL, 1.00 mmol, 1.2 equiv) was added and the solution was stirred at room temperature for 18 hrs. The reaction mixture was diluted with EtOAc and 1N HCl. The phases were separated, and the organic phase was washed twice with 1N HCl, once with satd. NaHCO3, and once with satd. NaCl. The organic phase was dried over Na2SO4, filtered, and concentrated en vacuo. The residue was purified by flash chromatography (20-100% EtOAc in Hexanes) and further purified by reverse-phase HPLC (10-80% CH3CN/H2O—NH4OH to pH 10 over 17 minutes, retention time 11.67 min) to provide 45 mg (12%) of the title compound as a white solid. MS (ES+) m/e 449 [M+H]+

1. customThe phases were separated
2. washthe organic phase was washed twice with 1N HCl, once with satd
3. dry with materialThe organic phase was dried over Na2SO4
4. filtrationfiltered
5. concentrationconcentrated en vacuo
6. customThe residue was purified by flash chromatography (20-100% EtOAc in Hexanes)
7. customfurther purified by reverse-phase HPLC (10-80% CH3CN/H2O—NH4OH to pH 10 over 17 minutes, retention time 11.67 min)