反应条件
1.1: sulfuric acid / 6 h / Reflux 2.1: potassium carbonate / N,N-dimethyl-formamide / 6 h / 85 °C / Inert atmosphere 3.1: sodium hydroxide / 1,4-dioxane; methanol / 2.5 h / 85 °C 3.2: 0.17 h 4.1: diphenyl phosphoryl azide; triethylamine / tetrahydrofuran / 6 h / 80 °C 5.1: ethanol; potassium hydroxide / 18 h / Reflux 6.1: palladium 10 on activated carbon; hydrogen / tetrahydrofuran; methanol / 4560.31 Torr View Scheme
参考文献
Archiv der Pharmazie, , vol. 344, # 9 p. 557 - 563