Chemistry of Heterocyclic Compounds (New York, NY, United States), , vol. 3, p. 662 - 666
Khimiya Geterotsiklicheskikh Soedinenii, , vol. 3, # 5 p. 839 - 844
2.合成路线
2207-32-1
2274-89-7
Zhurnal Obshchei Khimii, , vol. 27, p. 2599,2603; engl. Ausg. S. 2656, 2659