参考文献

Kovalev, V. V.; Fedorova, O. A.; Shokova, E. A. Journal of Organic Chemistry USSR (English Translation), 1987 , vol. 23, # 9 p. 1672 - 1675 Zhurnal Organicheskoi Khimii, 1987 , vol. 23, # 9 p. 1882 - 1886