参考文献

Journal of Organic Chemistry USSR (English Translation), , vol. 7, p. 1600 Zhurnal Organicheskoi Khimii, , vol. 7, # 7 p. 1543 - 1544 Zhurnal Organicheskoi Khimii, , vol. 10, # 9 p. 1873 - 1877,1884 - 1888