1.
Z Naturforsch C J Biosci
; 55(5-6): 318-22, 2000.
Article
in English
| MEDLINE
| ID: mdl-10928539
ABSTRACT
The exudate of Ozothamnus hookeri has been investigated for its non-flavonoid constituents. A new natural C6-C3 ester of a long chain fatty acid and seven structurally related kaurane-diterpenoids were isolated. Three of the latter are new natural products, too. A rare 8-methoxy flavonol was also identified.
Subject(s)
Asteraceae/chemistry , Esters/chemistry , Esters/isolation & purification , Fatty Acids/analysis , Molecular Conformation , Plant Leaves/chemistry , Plant Stems/chemistry
2.
Z Naturforsch C J Biosci
; 55(1-2): 1-4, 2000.
Article
in English
| MEDLINE
| ID: mdl-10739091
ABSTRACT
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.