Volkova, L. D.; Vyaznikovtseva, O. V.; Gabdrakipov, V. Z.; Sokol'skii, D. V.
Russian Journal of Physical Chemistry, 1984 , vol. 58, # 11 p. 1650 - 1652
Zhurnal Fizicheskoi Khimii, 1984 , vol. 58, p. 2719 - 2721

Boehringer Ingelheim International GmbH; PUDER, Carsten; MERTEN, Joern; SCHMITT, Heinz-Peter; THUMERER, Markus; WEYELL, Bjoern
Patent: US2013/225804 A1, 2013 ;
Location in patent: Paragraph 99 ;

Cha, Jin Soon; Oh, Se Yeon; Lee, Kwang Woo; Yoon, Mal Sook; Lee, Jae Cheol; Kim, Jin Euog
Heterocycles, 1988 , vol. 27, # 7 p. 1595 - 1598

Fujisawa, Tamotsu; Mori, Toshiki; Sato, Toshio
Tetrahedron Letters, 1982 , vol. 23, # 48 p. 5059 - 5062