反应详情

温度

25 °C

To a mixture of 1,4-dioxane (1 mL) with 4-[4-(4-fluoro-2-nitrophenyl)-5-(2-fluoropyridin-3-yl)-1H-imidazol-2-yl]cyclohexylacetonitrile (0.17 g, 0.40 mmol) was added a solution of sodium dithionite (0.2 g, 0.001 mol) and ammonium hydroxide (0.4 mL, 0.003 mol) in water (1 mL), The reaction was stirred at 25° C. for 1 hour, concentrated, and was then extracted with isopropanol (3×1 mL each). The combined extracts were heated in a microwave reactor at 160° C. for 15 minutes, concentrated, and purified via column chromatography on silica gel (50% ethyl acetate 50% hexanes) to give 0.088 g of the desired product. 1H NMR (400 MHz, DMSO-d6): δ 8.42 (br s, 1H), 7.07 (m, 1H), 7.66 (m, 1H), 6.99 (m, 1H), 6.80-6.91 (m, 2H), 3.09 (m, 1H), 1.10-2.05 (m, 11H); MS [M+H]=374.0.

1. concentrationconcentrated
2. extractionwas then extracted with isopropanol (3×1 mL each)
3. temperatureThe combined extracts were heated in a microwave reactor at 160° C. for 15 minutes
4. concentrationconcentrated
5. custompurified via column chromatography on silica gel (50% ethyl acetate 50% hexanes)