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Title
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Isolation and structure elucidation of glucosylated colchicinoids from the seeds of Gloriosa superba by LC-DAD-SPE-NMR
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Author
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Abstract
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| Four new colchicinoids were isolated from the seeds of Gloriosa superba together with the known compounds colchicoside (4) and 3-de-O-methylcolchicine-3-O-β-d-glucopyranosyl-(1→4)-3-O-β-d-glucopyranoside (6), by means of conventional column chromatography and LC-DAD-SPE-NMR. The new compounds were identified as N-deacetyl-N-formyl-3-de-O-methylcolchicine-3-O-β-d-glucopyranoside (1), 3-de-O-methylcolchicine-3-O-β-d-glucopyranosyl-(1→6)-3-O-β-d-glucopyranoside (2), N-deacetyl-N-formyl-3-de-O-methylcolchicine-3-O-β-d-glucopyranosyl-(1→6)-3-O-β-d-glucopyranoside (3), and 3-de-O-methylcolchicine-3-O-β-d-glucopyranosyl-(1→3)-3-O-β-d-glucopyranoside (5). The structure elucidation was performed by means of NMR (COSY, HSQC, and HMBC), HRESIMS/MS, and GCMS data analysis. |
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Language
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English
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Source (journal)
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Journal of natural products. - Columbus, Ohio, 1979, currens
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Publication
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Columbus, Ohio
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2017
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ISSN
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0163-3864
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DOI
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10.1021/ACS.JNATPROD.6B01024
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Volume/pages
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80
:4
(2017)
, p. 1187-1191
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ISI
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000400538800052
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Pubmed ID
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28211687
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Full text (Publisher's DOI)
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Full text (open access)
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Full text (publisher's version - intranet only)
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