Bentley, K. W.; Hardy, D. G. (1967). Novel analgesics and molecular rearrangements in the morphine-thebaine group. 3. Alcohols of the 6,14-endo-ethenotetrahydrooripavine series and derived analogs of N-allylnormorphine and -norcodeine. Journal of the American Chemical Society 89 (13): 3281–3292, doi:10.1021/ja00989a032.
