1: 47 percent / conc. HCl / methanol / 2 h / Heating 2: methanol / Ambient temperature View Scheme
参考文献
Chemistry of Heterocyclic Compounds (New York, NY, United States), , vol. 19, # 12 p. 1293 - 1297
Khimiya Geterotsiklicheskikh Soedinenii, , vol. 19, # 12 p. 1638 - 1642