反应详情

温度

0 °C

To a stirred solution of (1RS)-1-{6-chloro-4-(5-chloropyridin-3-yl)-3-[(trans-4-methylcyclohexyl)methyl]-3H-imidazo[4,5-c]pyridin-2-yl}-1-(3-fluoropyridin-2-yl)ethanol (Example 8.6/8.7, Step 3; 1.2 g, 2.33 mmol) and pyridine (1.88 mL, 23.3 mmol) in dichloromethane (20 mL) was added thionyl chloride (0.85 mL, 11.67 mmol) dropwise at 0° C., and the reaction was stirred at 0° C. for 1 h. The reaction was quenched with saturated NaHCO3 solution and extracted with dichloromethane (2×25 mL). The combined organic extracts were washed with water (1×25 mL) and brine (1×25 mL), dried over anhydrous Na2SO4, filtered, and concentrated. The residue was purified on a silica gel column (eluting with 40-60% EtOAc/petroleum ether) to afford 6-chloro-4-(5-chloropyridin-3-yl)-2-[1-(3-fluoropyridin-2-yl)ethenyl]-3-[(trans-4-methylcyclohexyl)methyl]-3H-imidazo[4,5-c]pyridine. MS ES/APCI calcd. for C26H24Cl2FN5 [M+H]+ 496. found 496.

1. customThe reaction was quenched with saturated NaHCO3 solution
2. extractionextracted with dichloromethane (2×25 mL)
3. washThe combined organic extracts were washed with water (1×25 mL) and brine (1×25 mL)
4. dry with materialdried over anhydrous Na2SO4
5. filtrationfiltered
6. concentrationconcentrated
7. customThe residue was purified on a silica gel column (eluting with 40-60% EtOAc/petroleum ether)