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Piperaceae alkaloids: Part II1 structure and synthesis of cyclostachine A, A novel alkaloid fromPiper trichostachyon C. DC

  • Specialia Chimica, Biochimica
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Summary

A novel alkaloid designated cyclostachine A has been proved to have the structure (II) on the basis of spectral and degradative data. The structure has been confirmed by synthesis, and by X-ray analysis of the derived amine sulphate (III).

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Author notes

  1. B. S. Joshi, N. Viswanathan, D. H. Gawad & V. Balakrishnan

    Present address: Ciba-Geigy Research Centre, Goregaon, 400 063, Bombay, India

  2. W. von Philipsborn

    Present address: Institute of Organic Chemistry, University of Zürich, Rämistrasse 76, CH-8001, Zürich, Switzerland

  3. A. Quick

    Present address: Chemical Crystallography Laboratory, Imperial College, SW7 2AY, London, England

Authors and Affiliations

  1. Ciba-Geigy Research Centre, Goregaon, 400 063, Bombay, India

    W. von Philipsborn & A. Quick

  2. Institute of Organic Chemistry, University of Zürich, Rämistrasse 76, CH-8001, Zürich, Switzerland

    B. S. Joshi, N. Viswanathan, D. H. Gawad, V. Balakrishnan & A. Quick

  3. Chemical Crystallography Laboratory, Imperial College, SW7 2AY, London, England

    B. S. Joshi, N. Viswanathan, D. H. Gawad, V. Balakrishnan & W. von Philipsborn

Authors
  1. B. S. Joshi
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  2. N. Viswanathan
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  3. D. H. Gawad
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  4. V. Balakrishnan
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  5. W. von Philipsborn
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  6. A. Quick
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Additional information

Dedicated to ProfessorT. R. Govindachari on the occasion of his 60th birthday.

For Part I seeB. S. Joshi, N. Viswanathan, D. H. Gawad andW. von Philipsborn, Helv. chim. Acta, in preparation.

Contribution No. 402 from Ciba-Geigy Research Centre;13C-NMR-spectroscopy Part 8, for Part 7 see Ref.

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Joshi, B.S., Viswanathan, N., Gawad, D.H. et al. Piperaceae alkaloids: Part II1 structure and synthesis of cyclostachine A, A novel alkaloid fromPiper trichostachyon C. DC. Experientia 31, 880–881 (1975). https://doi.org/10.1007/BF02358826

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  • DOI: https://doi.org/10.1007/BF02358826

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