Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry (Jun 2010)
C15 FUNCTIONALIZED DERIVATIVES OF ent-KAUR-16-EN-19-OIC ACID: ISOLATION FROM THE SUNFLOWER HELIANTHUS ANNUUS L. AND SYNTHESIS
Abstract
The known diterpenic ester – 15α-angeloyl-ent-kaur-16-en-19-oic (angeloylgrandifl oric) acid has been isolated from the dry wastes of Helianthus annuus L. The synthesis of 15α-hydroxy- and 15-oxo-ent-kaur-16-en-19- oic acids starting from ent-kaur-16-en-19-oic acid has been performed.