Troyanskii, E. I.; Mizintsev, V. V.; Molokanov, A. N.; Ogibin, Yu. N.; Nikishin, G. I.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1986 , vol. 35, # 12 p. 2499 - 2506
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1986 , # 12 p. 2725 - 2734

Nanda, Samik; Kato, Yasuo; Asano, Yasuhisa
Tetrahedron, 2005 , vol. 61, # 46 p. 10908 - 10916