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Title

A set of biogenetically interesting polyhalogenated acetogenins from Ptilonia magellanica

AuthorsGallardo, Amalia; Cueto, Mercedes ; Díaz-Marrero, Ana R. ; Rosa, José M. de la ; Fajardo, Víctor; San-Martín, Aurelio,; Darias, José
KeywordsBiogenesis
Absolute configuration
Unusual halogenation pattern
Magellenediol
Strait of Magellan
Ptilonines
Red algae
Bonnemaisoniaceae
Ptilonia magellanica
Pyranosylmagellanicus
Issue DateJan-2018
PublisherElsevier
CitationPhytochemistry 145: 111-120 (2018)
AbstractPtilonines 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.
Publisher version (URL)https://doi.org/10.1016/j.phytochem.2017.06.010
URIhttp://hdl.handle.net/10261/179227
Identifiersdoi: 10.1016/j.phytochem.2017.06.010
issn: 0031-9422
e-issn: 1873-3700
Appears in Collections:(IPNA) Artículos
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