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neo-Clerodane diterpenoids from Salvia dugesii and their bioactive studies |
Gang XUa, Fang ZHAOb, Xian-Wen YANGc, Juan ZHOUb, Li-Xin YANGa, Xiao-Ling SHENb, Ying-Jie HUb, Qin-Shi ZHAOa |
a State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; b Tropical Medicine Institute, Guangzhou University of Chinese Medicine, Guangzhou 510405, China; c Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China |
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Abstract Salvia dugesii is an invasive plant in Yunnan, China. To tentatively explore its utilization, a systematic phytochemical investigation was carried out on this plant, which led to the isolation of five new neo-clerodane diterpenoids, dugesins C-G(1-5), together with six known ones. Their structures were determined by comprehensive NMR and MS spectroscopic analysis. It was noteworthy that the eleven isolates, composed of five different carbocyclic systems derived from the neo-clerodane diterpenoid skeleton, were reported from the same plant for the first time. The anti-feedantial, cytotoxic, and antiviral activities of the isolates were evaluated. Dugesin F(4) was tested to be a non-toxic antiviral compound against influenza virus FM1.
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Keywords
Salvia dugesii
neo-clerodane diterpenoids
dugesins
antivirus
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Fund:This work was supported financially by the National Basic Research Program of China(2009CB522300), the National Natural Science Foundation of China(No. 20702054), Shanghai Landscaping Administration Bureau Program(G102404), the foundation from the Chinese Academy of Sciences(2010KIBA10), and the Young Academic and Technical Leader Raising Foundation of Yunnan Province(No. 2009CI073). |
Issue Date: 24 November 2017
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