An array of one-and two-dimensional NMR techniques (APT, DEPT, COSY, NOESY, HMQC and HMBC) was used to achieve the structural elucidation of some natural benzofuranoid and hydrofuran neolignans isolated from L icaria chrysophylla, L . armeniaca, L . aurea and Nectandra glabrescens fruits. The combin
Complete assignment of the 1H and 13C NMR spectra of secoisolariciresinol diglucoside, a mammalian lignan precursor isolated from Linum usitatissimum
β Scribed by Stefano Chimichi; Massimo Bambagiotti-Alberti; Silvia A. Coran; Valerio Giannellini; Boris Biddau
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 62 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0749-1581
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β¦ Synopsis
A convenient isolation and purification protocol for secoisolariciresinol diglucoside (1), a precursor of the biologically active mammalian lignans enterolactone and enterodiol, from flax seed is reported together with an extensive 1D-and 2D-NMR study (GE-HSQC, GE-HMBC and NOESY) leading to its definitive characterization as 2,3-bis[(4-hydroxy-3-methoxyphenyl)methyl]-1,4-butanediyl bis-[R-(R Ε , R Ε )]-Λ-D-glucopyranoside.
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