反应详情

Under nitrogen atmosphere, 4-bromo-8-methoxy-6,6-dimethyl-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrile (Compound U5, 25.0 mg, 63.25 μmol), copper iodide (2.41 mg, 12.65 μmol), sodium azide (20.6 mg, 316.3 μmol), (1S,2S)—N,N′-dimethyl-cyclohexane-1,2-diamine (2.70 mg, 18.98 μmol), and sodium ascorbate (1.25 mg, 6.325 μmol) were dissolved in ethanol (0.70 mL) and water (0.30 mL) and the mixture was stirred at 100° C. for 2 hr. The reaction solution was poured into aqueous solution of sodium hydroxide (1 M), extracted with ethyl acetate, washed with water and saturated brine, dried over sodium sulfate, and then filtered. The residues obtained after concentration under reduced pressure were purified by silica gel column chromatography (methanol/dichloromethane) to obtain the title compound (5.6 mg, 27%).

1. extractionextracted with ethyl acetate
2. washwashed with water and saturated brine
3. dry with materialdried over sodium sulfate
4. filtrationfiltered
5. customThe residues obtained
6. concentrationafter concentration under reduced pressure
7. customwere purified by silica gel column chromatography (methanol/dichloromethane)