反应详情

温度

120 °C

8-((S)-2,2-Dimethyl-[1,3]dioxolan-4-yl methoxy)-6,6-dimethyl-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrile (20.0 mg, 0.048 mmol), ammonium chloride (1.28 mg, 0.024 mmol) and NaN3 (6.24 mg, 0.096 mmol) were dissolved in DMF, and the mixture was stirred at 120° C. for 14 hrs. NaN3 (6.24 mg, 0.096 mmol) was further added to the mixture, which was then stirred at 120° C. for 30 hrs. The reaction solution was added with 1 N aqueous solution of hydrochloric acid and extracted with ethyl acetate. The organic layer was washed with saturated brine and concentrated under reduced pressure. The resultant solid obtained after concentration was washed with hexane:ethyl acetate=1:1 to obtain 8-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl methoxy)-6,6-dimethyl-3-(2H-tetrazol-5-yl)-5,6-dihydro-benzo[b]carbazol-11-one as a white solid.

1. stirringwas then stirred at 120° C. for 30 hrs
2. extractionextracted with ethyl acetate
3. washThe organic layer was washed with saturated brine
4. concentrationconcentrated under reduced pressure
5. customThe resultant solid obtained
6. concentrationafter concentration
7. washwas washed with hexane