The Senecio alkaloids. Suggested structures for isoline and bisline, two new alkaloids from Senecio othonniformis Fourcade

Journal of the Chemical Society C: Organic

1970.0

Abstract

Plants of Senecio othonniformis Fourcade afforded the alkaloids, bisline, C18H25NO6, and its acetate, isoline, C20H29NO7. Hydrolysis of isoline gave acetic acid, retronecine, and a new acid, isolinecic acid, C10H18O5. N.m.r. and mass spectral data and degradation studies indicate that isolinecic acid is 2,5-dihydroxy-3-methylheptane-2,5-dicarboxylic acid or its 2,4-dihydroxy-isomer.

DOI： 10.1039/J39700002312

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