Pyrrolizidine Alkaloids of Three Species ofSenecioin British Columbia

Planta Medica
1996.0

Abstract

A new alkaloid, 9-0-acetyl-7-0-angelyl-retronecine, was isolated from Senecio triangularis together with 7-0-angelyl-, 9-0-angelyl-, and 7-0-angelyl-9-0-sarracinylretronecine; S. pseudaureus and S. streptanthifoliso yielded only retrosine and sene-cionine.

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