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New Highly Oxidized Formamidobisabolene‐Derived Sesquiterpenes from a Hainan Sponge Axinyssa variabilis
Author(s) -
Liu HaiLi,
Xue DuoQing,
Chen SiHan,
Li XuWen,
Guo YueWei
Publication year - 2016
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.201600077
Subject(s) - chemistry , sponge , stereochemistry , two dimensional nuclear magnetic resonance spectroscopy , botany , biology
Two new highly oxidized formamidobisabolene sesquiterpenes ( 1 and 2 ), together with seven known related analogues ( 3 – 9 ), were isolated from a Hainan sponge Axinyssa variabilis . Their structures were determined by extensive 1D‐ and 2D‐ NMR and MS spectra analyses, and by comparison of their spectroscopic data with those of the related model compounds. The plausible biosynthetic relationship between compounds 1 – 9 has also been described.