Lantos, Ivan; Gombatz, Kerry; McGuire, Michael; Pridgen, Lendon; Remich, James; Shilcrat, Susan
Journal of Organic Chemistry, 1988 , vol. 53, # 18 p. 4223 - 4227

Markova,Yu.V. et al.
Zhurnal Organicheskoi Khimii, 1965 , vol. 1, p. 1475 - 1479,1494 - 1497

Andreani; Bonazzi; Rambaldi
Archiv der Pharmazie, 1982 , vol. 315, # 5 p. 451 - 456