A set of biogenetically interesting polyhalogenated acetogenins from Ptilonia magellanica
Ptilonines A−F, pyranosylmagellanicus D−E and magellenediol are previously undescribed acetogenins isolated from the red alga Ptilonia magellanica. Their structures were determined from spectroscopic evidence. The absolute configuration of the known pyranosylmagellanicus A, was established by derivatization with (R)− and (S)−α−methoxy −α−phenylacetic acids (MPA). Ptilonines exhibit an unusual halogenation pattern, that may confer evolutionary advantages to Ptilonia magellanica, for which a biogenetic origin is proposed. The antimicrobial effect of some of these compounds was evaluated.
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Other Authors: | |
| Format: | artículo biblioteca |
| Published: |
Elsevier
2018-01
|
| Subjects: | Biogenesis, Absolute configuration, Unusual halogenation pattern, Magellenediol, Strait of Magellan, Ptilonines, Red algae, Bonnemaisoniaceae, Ptilonia magellanica, Pyranosylmagellanicus, |
| Online Access: | http://hdl.handle.net/10261/179227 http://dx.doi.org/10.13039/501100004837 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100003339 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|