Benzophenone glycosides from the pericarps of Aquilaria yunnanensis S. C. Huang
2020
Sun, Hui | Zhang, Yun-Feng | Huo, Hui-Xia | Guan, Peng-Wei | Wang, Chao-Chao | Yao, Hui-Na | Zhao, Yun-Fang | Tu, Peng-Fei | Li, Jun
Two new benzophenone glycosides, aquilarisides A (1) and B (2), together with six known analogues (3-8) were isolated from the pericarps of Aquilaria yunnanensis S. C. Huang. Their structures were elucidated on the basis of 1D and 2D NMR and mass spectroscopic analyses, and the absolute configuration of compound 1 was determined by experimental and calculated electronic circular dichroism (ECD) spectra. Anti-inflammatory activities of all compounds 1–8 were evaluated for their inhibitory activities against lipopolysaccharide (LPS)-stimulated induced nitric oxide (NO) production in RAW 264.7 cells using the Griess assay. Compound 2 indicated a weak inhibition of NO production.
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