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  • Title: New lignans from the perisperm of Sesamum indicum.
    Author: Grougnet R, Magiatis P, Mitaku S, Terzis A, Tillequin F, Skaltsounis AL.
    Journal: J Agric Food Chem; 2006 Oct 04; 54(20):7570-4. PubMed ID: 17002423.
    Abstract:
    A procedure, based on XAD-4 adsorption resin, which permits the obtainment of enriched polyphenolic extracts from Sesamum indicum perisperm (coat) has been developed. Chemical analysis of the obtained extracts led to the identification of 16 lignans. Among them, two new lignans, (+)-saminol and (+)-episesaminone-9-O-beta-D-sophoroside, have been isolated. Additionally, the relative stereochemistry of (-)-sesamolactol, previously reported as todolactol A epimer, has been unequivocally defined using X-ray crystallography. The structures of all new compounds were determined by spectroscopic methods, mainly by the concerted application of 1D and 2D NMR techniques (HMQC, HMBC, and NOESY) and mass spectroscopy.
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