Carbon-13 nuclear magnetic resonance spectroscopy of cephalotaxus alkaloids

Authors

  • David Weisleder,

    1. Northern Regional Research Center, Agricultural Research, Science and Education Administration, US Department of Agriculture, Peoria, Illinois 61604, USA
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  • Richard G. Powell,

    Corresponding author
    1. Northern Regional Research Center, Agricultural Research, Science and Education Administration, US Department of Agriculture, Peoria, Illinois 61604, USA
    • Northern Regional Research Center, Agricultural Research, Science and Education Administration, US Department of Agriculture, Peoria, Illinois 61604, USA
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  • Cecil R. Smith Jr.

    1. Northern Regional Research Center, Agricultural Research, Science and Education Administration, US Department of Agriculture, Peoria, Illinois 61604, USA
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Abstract

Carbon-13 chemical shift assignments have been obtained for the naturally occurring Cephalotaxus alkaloids, cephalotaxine, acetylcephalotaxine, harringtonine, isoharringtonine, drupacine and cephalotaxinone.

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