Bioactive dammarane triterpenoid saponins from the leaves of Cyclocarya paliurus.

Thirteen undescribed dammarane triterpenoid saponins (cypaliurusides A-M), including eleven seco-dammarane type triterpenoids, were isolated from Cyclocarya paliurus. Each of these compounds has the unique feature of having a monosaccharide attached to C-11, rather than C-12, compared to the same type of saponins found in this plant. The structures of them were determined by comprehensive analysis of 1D, 2D NMR and HRESIMS data. Cypaliuruside J showed significant α-glucosidase inhibitory effect with IC50 value of 2.22 ± 0.13 μM. In addition, Cypaliurusides F and K exhibited modest cytotoxic activities against selected human cancer cell lines in vitro, with IC50 values ranging from 4.61 ± 0.13 to 15.23 ± 3.88 μM. Copyright © 2020 Elsevier Ltd. All rights reserved.

Citation

Xian-Li Zhou, Shan-Bin Li, Meng-Qi Yan, Qin Luo, Li-Sheng Wang, Ling-Li Shen, Mei-Lian Liao, Cai-Hua Lu, Xia-Yan Liu, Cheng-Qin Liang. Bioactive dammarane triterpenoid saponins from the leaves of Cyclocarya paliurus. Phytochemistry. 2021 Mar;183:112618

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PMID: 33352359

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