期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 83, 期 21, 页码 13178-13183出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.joc.8b01906
关键词
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资金
- National Natural Science Foundation of China [21702209, 81172940]
- Foundation of State Key Laboratory of Phytochemistry and Plant Resources in West China [P2010-ZZ14]
Ganolearic acid A (1), a 3,4-seco-hexanortriterpenoid featuring a rare 3/5/6/5 tetracyclic system, was obtained in trace amounts from Ganoderma cochlear by a LCUV/MS-guided method. Meanwhile, a new 3,4-seco-nortriterpenoid, fornicatin M (2), as well as its biogenetic precursor, fornicatin D (3), was isolated. The stereochemical structure of 1 was completely established by 1D, 2D NMR, IR, and HRMS spectra, as well as C-13 NMR and electronic circular dichroism calculations. The plausible biogenetic pathway of 1 and 2 was proposed. Furthermore, their anti-inflammatory activities were evaluated.
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