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Three New Sesquiterpenoids and One New Sesquiterpenoid Derivative from Chinese Eaglewood
Huan Zhao1, Qinghua Peng2, Zhuzhen Han3
1The MOE Key Laboratory for Standardization of Chinese Medicines and the SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Traditional Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201210, China. 12248573@163.com.
Abstract:
Three new sesquiterpenoids (1-3) and one new sesquiterpenoid derivative (4), along with three known sesquiterpenoids (5-7), were isolated from the 95% ethanolic extract of Chinese eaglewood [Aquilaria sinensis (Lour.) Gilg]. The structures of these compounds were elucidated through extensive analysis of spectroscopic data including IR, NMR, HRESIMS, and X-ray diffraction experiments. In addition, the above new compounds were detected for their bioactivities against LPS-induced NO production in RAW 264.7 cells. Among them, compound 2 exhibited obvious anti-inflammatory activity with an IC50 value of 8.1 μM.
