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[Two new triterpenoid acids from Uighur medicine Fomes officinalis]
Jian-Xin Han1,2, Tao Yuan1
1The Key Laboratory of Plant Resources and Chemistry of Arid Zone, Chinese Academy of Sciences, State Key Laboratory of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China.
Abstract:
Two new lanostane triterpenoid acids, 12β, 15α-dihydroxy-24-methyl-3,23-dioxo-lanosta-7,9(11)-dien-26-oic acid (1), and 3α, 12β-dihydroxy-24-methyl-7,23-dioxo-lanosta-8-en-26-oic acid (2), were isolated from the methanolic extract of Uighur medicine Fomes officinalis. Their structures were elucidated based on the analysis of spectroscopic data (1D, 2D NMR and HR-MS). Anti-inflammatory and cytotoxicity assays revealed that both compound 1 and 2 show no inhibitory effects on nitric oxide production in lipopolysaccharide-induced RAW264.7 cells, and no cytotoxicity activities against HepG2 cells.
