ammonium hydroxide in ethanol T=60 - 70°C; 20 h; ampule;
参考文献
Kazarinova, T. D.; Markova, L. I.; Kharchenko, V. G.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1990 , vol. 26, # 4 p. 438 - 441
Khimiya Geterotsiklicheskikh Soedinenii, 1990 , # 4 p. 511 - 514