The preparation of 7-alkyl derivatives of 6,14-endo-ethenotetrahydrothebaine and 6,14-endo-ethenotetrahydro-oripavine, including N-alkyl, N-alkenyl, and N-cyclopropylmethyl analogues, is described.
K. W. Bentley, D. G. Hardy, J. W. Lewis, M. J. Readhead and W. I. Rushworth, J. Chem. Soc. C, 1969, 826 DOI: 10.1039/J39690000826
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