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Flavidanolides A and B from Isodon flavidus
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作者 Jiang-Hai Ye Guo-Yong Luo +8 位作者 Chen-Liang Zhao Zheng-Ming Liang Jin-Huai Wei Ya-Hua Liu Kang He Lu-Tai Pan Jing-Jie Zhang Juan Zou Hong-Jie Zhang 《Chinese Chemical Letters》 SCIE CAS CSCD 2023年第9期160-164,共5页
A phytochemical investigation on Isodon flavidus led to the isolation of flavidanolide A(1),a rearranged diterpenoid featuring a six/seven/five-membered tricyclic skeleton,together with flavidanolide B(2),an uncommon ... A phytochemical investigation on Isodon flavidus led to the isolation of flavidanolide A(1),a rearranged diterpenoid featuring a six/seven/five-membered tricyclic skeleton,together with flavidanolide B(2),an uncommon heterodimeric diterpenoid consisting of a norabietane and a seco-isopimarane monomeric units.Their structures were elucidated by extensive spectroscopic data and single-crystal X-ray diffraction analyses.Their plausible biosynthetic routes were also proposed.In the bioassay,flavidanolide B was found to exhibit good inhibitory effect against lipopolysaccharide(LPS)-induced nitric oxide(NO)production in RAW264.7 cells comparable to positive control pyrrolidinedithiocarbamate ammonium(PDTC),which provided evidence for the medicinal value of I.flavidus as a folk medicine for treating inflammatory diseases. 展开更多
关键词 Isodon flavidus Rearranged six/seven/five-membered SKELETON Heterodimeric diterpenoid Plausible biosynthetic pathway antiinflammatory effects
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