Several new isoprenoids from the soft coral Sinularia erecta

Journal of Natural Products

Volumn 61, Issue 7, 1998, Pages 872-875

  Rudi, Amira ^a   Dayan, Tal Lev Ari ^a   Aknin, Maurice ^b   Gaydou, Emile M ^c   Kashman, Yoel ^a  

^a TEL AVIV UNIVERSITY   (Israel)

^b INSTITUT UNIVERSITAIRE EUROPÉEN DE LA MER   (France)

^c D'Economie et des Sciences Daix   (France)

Author keywords

[No Author keywords available]

Indexed keywords

DECARYIOL; DITERPENOID; EPI NORCEMBRENE; GERMACRENE D; ISOPRENOID; MAYOTOLIDE A; MAYOTOLIDE B; NEPHTHENOL; NORCEMBRENE; SESQUITERPENE DERIVATIVE; UNCLASSIFIED DRUG;

ARTICLE; CORAL; DRUG ISOLATION; DRUG STRUCTURE; MASS SPECTROMETRY; NONHUMAN; NUCLEAR MAGNETIC RESONANCE;

ALCYONACEA; ANTHOZOA; SINULARIA;

EID: 0031928696     PISSN: 01633864     EISSN: None     Source Type: Journal    
DOI: 10.1021/np9705064     Document Type: Article

References (19)

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16. The 3:1 ratio between 2 and 3 is seen already in the NMR spectrum of the crude extract. Moreover, as TFA does not equilibrate the isomers and the basic equilibration is very slow, both epimers are natural products.
17. Surprisingly, the mixture of compounds 2 and 3 was not stable on a RP-18 column.
18. Traces of the methyl ester of 4 were also obtained during the methylation-methanolysis reaction.
19. It is important to note that freeze-drying of soft corals should not be used if the content of sesquiterpenes is of interest, as the volatile compounds will be lost with the water.