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Title
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Isolation and structure elucidation of cyclopeptide alkaloids from **Ziziphus nummularia** and **Ziziphus spina-christi** by HPLC-DAD-MS and HPLC-PDA-(HRMS)-SPE-NMR
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Author
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Abstract
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| Seven cyclopeptide alkaloids were isolated from the stem bark of Ziziphus nummularia and Ziziphus spina-christi. Three previously undescribed compounds were identified: nummularine-U, spinanine-B and spinanine-C, together with the known compounds mauritine-F, nummularine-D, nummularine-E and amphibine-D. For their purification either semi-preparative HPLC with DAD and ESIMS detection or HPLC-PDA-(HRMS)-SPE-NMR was applied, together with conventional separation methods. Their structures were elucidated by spectroscopic means. |
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Language
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English
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Source (journal)
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Phytochemistry: an international journal of plant biochemistry. - Oxford
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Publication
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Oxford
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2017
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ISSN
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0031-9422
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DOI
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10.1016/J.PHYTOCHEM.2017.02.029
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Volume/pages
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138
(2017)
, p. 163-169
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ISI
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000400717400015
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Pubmed ID
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28284565
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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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