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Two new polyhydroxyl polyacetylenes from fruits of Herpetospermum caudigerum

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Abstract

Two new polyhydroxy polyacetylenes, herpecaudenes A and B (1 and 2), were isolated from the ethanol extract of fruits of Herpetospermum caudigerum, an important Tibetan medicine. The structures of them were elucidated on the basis of extensive spectroscopic methods including UV, IR, HRESIMS, 1H and 13C NMR, HMBC, HSQC, and 1H-1H COSY. Compound 2 showed significant inhibitory effects on NO production in LPS-activated RAW 264.7 macrophages with IC50 values of 7.05 ± 1.59 µM.

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Fig. 1
Fig. 2

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Acknowledgements

The research work was supported by the National Science and Technology Major Project Fund of the Major new drug discovery, the Ministry of Science and Technology of China (2014ZX09301308-003).

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Authors and Affiliations

  1. School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China

    Xin Feng & Shouying Du

  2. Tibetanmedicine Institute, China Tibetology Research Center, Beijing, 100101, China

    Xin Feng, Gejia Zhong & Daji Dengba

  3. Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, 210009, China

    Jun Luo

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  1. Xin Feng
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  2. Gejia Zhong
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  3. Daji Dengba
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  4. Jun Luo
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  5. Shouying Du
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Correspondence to Shouying Du.

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Feng, X., Zhong, G., Dengba, D. et al. Two new polyhydroxyl polyacetylenes from fruits of Herpetospermum caudigerum . J Nat Med 71, 574–577 (2017). https://doi.org/10.1007/s11418-017-1079-4

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  • DOI: https://doi.org/10.1007/s11418-017-1079-4

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