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Noreudesmane sesquiterpenoids from the leaves of Nicotiana tabacum.
- Source :
-
Fitoterapia . Jul2014, Vol. 96, p81-87. 7p. - Publication Year :
- 2014
-
Abstract
- Abstract: Six new 14-noreudesmane sesquiterpenoids, nicotabacosides A–F (1–6), along with five known sesquiterpenoids (7–11), were isolated from the leaves of Nicotiana tabacum. The structures of compounds 1–6 were elucidated as isorishitin 3-O-β-d-glucopyranoside (1), rishitin 3-O-β-d-glucopyranoside (2), rishitin 2-O-β- d-glucopyranoside (3), 1, 6-dehydro-rishitin 3-O-β-d-glucopyranoside (4), 2-hydroxyl-ligudentatol 3-O-β-d-glucopyranoside (5) and oxyglutinosone 3-O-β-d-glucopyranoside (6) based on extensive spectroscopic analyses (HRESIMS, UV, IR, 1D and 2D NMR). Their absolute configurations were determined by X-ray single-crystal diffraction and comparison of their electronic circular dichroism (ECD) spectra. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 0367326X
- Volume :
- 96
- Database :
- Academic Search Index
- Journal :
- Fitoterapia
- Publication Type :
- Academic Journal
- Accession number :
- 96666594
- Full Text :
- https://doi.org/10.1016/j.fitote.2014.04.010