Register      Login
Australian Journal of Chemistry Australian Journal of Chemistry Society
An international journal for chemical science
RESEARCH ARTICLE

The Alkaloids of Heliotropium supinum L., with Observations on Viridifloric Acid

HC Crowley and CCJ Culvenor

Australian Journal of Chemistry 12(4) 694 - 705
Published: 1959

Abstract

Heliotropium supinum L. contains the pyrrolizidine alkaloids supinine, heliosupine, and echinatine as major bases. Two minor alkaloids, although not obtained in a pure state, are shown to be esters of trachelanthic acid and viridifloric acid, respectively, with 7-angelylheliotridine. The N-oxide of 7-angelylheliotridine, also isolated from the total crude base, is thought to be an artefact.Viridifloric acid is shown to be (-)-erythro-2,3-dihydroxy-4-methylpentane-3-carboxylic acid. Its melting point is markedly influenced by minute amounts of tenacious impurities. The ester of supinidine and viridifloric acid has been prepared from these component substances.

https://doi.org/10.1071/CH9590694

© CSIRO 1959

Committee on Publication Ethics


Export Citation Get Permission

View Dimensions