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Bentley KW, Hardy DG (June 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): 3281–92. doi:10.1021/ja00989a032. PMID6042764.
Bentley KW, Hardy DG (June 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): 3281–92. doi:10.1021/ja00989a032. PMID6042764.