A new oxyprenyl coumarin and highly methylated flavones from the exudate of Ozothamnus lycopodioides (Asteraceae).
A new oxyprenyl coumarin was isolated from the lipophilic exudate of Ozothamnus lycopodioides. Its structure was established as 7-(3,3'-dimethylallyloxy)-5-hydroxy-6-methoxycoumarin from its UV, MS and NMR spectral data, especially two dimensional experiments. In addition to six earlier reported flavonols, we found four highly substituted flavones, including two rare methylenedioxyflavones.
Rumbero
A
A
Departamento de Química Orgánica, Universidad Autónoma de Madrid, Spain.
Arriaga-Giner
F J
FJ
Wollenweber
E
E
D019659:Asteraceae / Q000737:chemistry*; D003374:Coumarins / Q000737:chemistry* / Q000302:isolation & purification; D005419:Flavonoids / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure
C407878:7-(3,3'-dimethylallyloxy)-5-hydroxy-6-methoxycoumarin; D003374:Coumarins; D005419:Flavonoids