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Protostane-Type Triterpenoids from Alisma orientale. | LitMetric
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Protostane-Type Triterpenoids from Alisma orientale.

Hong-Mei Li Xue-Jiao Chen Dan Luo Min Fan Zhi-Jun Zhang Li-Yan Peng Xing-De Wu Rong-Tao Li Xu Ji Qin-Shi Zhao

Chem Biodivers

State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, P. R. China.

Published: December 2017

Twenty-eight protostane triterpenoids, including a new degraded one (1), nine new ones (2 - 10), and two new natural ones (11 and 12), have been isolated from the dried rhizomes of Alisma orientale. Alisol R (1) was the first 20,21,22,23,24,25,26,27-octanorprotostane triterpenoid. The absolute configurations of 25-methoxyalisol F (2) and 16β-hydroperoxyalisol B 23-acetate (3) were determined by X-ray diffraction analysis. In addition, alismaketone-B 23-acetate (28) showed potent vasorelaxant activity on endothelium-intact thoracic aorta rings precontracted with KCl.

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 Source
http://dx.doi.org/10.1002/cbdv.201700452DOI Listing

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