期刊
PHYTOCHEMISTRY
卷 70, 期 10, 页码 1315-1320出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.phytochem.2009.07.017
关键词
Stypopodium flabelliforme; Dictyotaceae; Seaweeds; Meroditerpenoids; GIAO/DFT; Stypotriol
资金
- Proyecto Anillo ACT-38
- FONDECYT [1070715]
- MECESUP [0408]
Meroditerpenoids, 2-[2'(E)-3',7',11',15'-tetramethylhexadec-2-en-1'-yl]-6-methyl-1,4-benzohydroquinone diacetate and 4'-chlorostypotriol triacetate, along with eight known compounds isolated from the dichloromethane extract of the brown alga Stypopodium flabelliforme after peracetylation are reported. One of them, 2-(1-oxo-hexadecyl)-1,3,5-trihydroxybenzene, is described for the first time within this genus. Structural elucidation was carried out on the basis of spectroscopic data and theoretical studies using GIAO/DFT analysis at B3LYP/6-31G(d) and mPW1PW91/6-31G(d) levels of theory for 4'-chlorostypotriol. This isomer is the first metabolite from the Stypopodium genus possessing one halogen atom. (C) 2009 Elsevier Ltd. All rights reserved.
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