Elsevier, Phytochemistry, 5(68), p. 680-686, 2007
DOI: 10.1016/j.phytochem.2006.12.011
Wiley-VCH Verlag, ChemInform, 33(38), 2007
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Fractionation of methylene chloride extracts of the resin of Ferula vesceritensis and F. sinaica afforded three sesquiterpene coumarins and a glucose derivative. One of them was a sesquiterpene with a rare carbon skeleton. The structures of these compounds were determined by extensive NMR studies, including DEPT, COSY, NOE, HMQC, and HMBC.