Batrachotoxin alkaloids from passerine birds: a second toxic bird genus (Ifrita kowaldi) from New Guinea.

  title={Batrachotoxin alkaloids from passerine birds: a second toxic bird genus (Ifrita kowaldi) from New Guinea.},
  author={John Philip Dumbacher and Thomas F. Spande and John W. Daly},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  volume={97 24},
  • J. Dumbacher, T. Spande, J. Daly
  • Published 21 November 2000
  • Biology
  • Proceedings of the National Academy of Sciences of the United States of America
Batrachotoxins, including many congeners not previously described, were detected, and relative amounts were measured by using HPLC-mass spectrometry, in five species of New Guinean birds of the genus Pitohui as well as a species of a second toxic bird genus, Ifrita kowaldi. The alkaloids, identified in feathers and skin, were batrachotoxinin-A cis-crotonate (1), an allylically rearranged 16-acetate (2), which can form from 1 by sigmatropic rearrangement under basic conditions, batrachotoxinin-A… 

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