Xylomexicanins K-N: limonoids from the leaves and twigs of Xylocarpus granatum
| Autor: | Shao Jing Li, Xin Li Huang, Hiromasa Kiyota, Chun Hua Zhou, Li Kang Zhao, Yi Bing Wu, Francoise Sauriol, Yu-Cheng Gu, Jin Jun Chen |
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| Rok vydání: | 2021 |
| Předmět: |
biology
010405 organic chemistry Chemistry Stereochemistry Organic Chemistry Plant Science DEPT biology.organism_classification Limonoid Mass spectrometry 01 natural sciences Biochemistry 0104 chemical sciences Analytical Chemistry 010404 medicinal & biomolecular chemistry Xylocarpus granatum medicine Mexicanolide Two-dimensional nuclear magnetic resonance spectroscopy medicine.drug |
| DOI: | 10.6084/m9.figshare.14568637 |
| Popis: | Six new compounds, xylomexicanins K-N (1–4), granasteroid (5) and 5-methoxy-2-pentylbenzofuran-7-ol (6), along with nine known compounds were isolated from the leaves and twigs of Xylocarpus granatum. Among them, 1 was a biogenetic precursor of 1,8,9-phragmalin limonoid, and 4 represent the first example of degraded A-ring limonoid. The structures of them were elucidated on the basis of one- and two-dimensional NMR spectroscopic data (including 1H, 13C-NMR, DEPT, 1H-1H COSY, HSQC, HMBC, and NOESY) and confirmed by high-resolution mass spectrometry. |
| Databáze: | OpenAIRE |
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