参考文献

Lukevits, E.; Sleiksha, I.; Liepin'sh, E.; Shats-ts, V. D.; Zitsmane, I.; Purvinya, A. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1991 , vol. 27, # 12 p. 1319 - 1327 Khimiya Geterotsiklicheskikh Soedinenii, 1991 , # 12 p. 1644 - 1652