Sesquiterpene lactones and a myoinositol from glandular trichomes of Viguiera quinqueremis (Heliantheae; Asteraceae).
The extract of the floral parts of Viguiera quinqueremis afforded, in addition to known compounds, six new sesquiterpene lactones as well as a new myoinositol derivative. All compounds were detected in glandular trichomes which were collected micromechanically from the anther appendages and were analyzed by HPLC. Structure identification was performed by 1H NMR measurements including LC NMR and LC MS experiments.
Spring
O
O
Institut für Botanik, Universität Hohenheim, Stuttgart, Germany. spring@uni-hohenheim.de
Zipper
R
R
Reeb
S
S
Vogler
B
B
Da Costa
F B
FB
D019659:Asteraceae / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid; D007294:Inositol / Q000737:chemistry / Q000302:isolation & purification*; D007783:Lactones / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification*; D013816:Thermodynamics
D007783:Lactones; D012717:Sesquiterpenes; D007294:Inositol