title: Flavones from Cassia siamea and their anti-tobacco mosaic virus activity.
abstract: Two new flavones, siameflavones A and B (1 and 2), together with five known flavones (3-7) were isolated from the stem of Cassia siamea. Their structures were elucidated by spectroscopic methods including extensive 1D and 2D NMR techniques. Compounds 1-5 were evaluated for their anti-tobacco mosaic virus (Anti-TMV) activity. The results showed that compounds 1-5 showed weak anti-TMV activity with inhibition rates in the range of 11.6-18.5%.
authors.affiliation: a Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University , Kunming 650031 , China.|b The Technology Center, China Tobacco Yunnan Industry Company (Ltd.) , Kunming 650000 , China.
authors.forename: Min
authors.initials: M
authors.lastname: Zhou
authors.affiliation: a Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University , Kunming 650031 , China.
authors.forename: Kun
authors.initials: K
authors.lastname: Zhou
authors.affiliation: b The Technology Center, China Tobacco Yunnan Industry Company (Ltd.) , Kunming 650000 , China.
authors.forename: Neng-Jun
authors.initials: NJ
authors.lastname: Xiang
authors.affiliation: b The Technology Center, China Tobacco Yunnan Industry Company (Ltd.) , Kunming 650000 , China.
authors.forename: Liu
authors.initials: L
authors.lastname: Yang
authors.affiliation: b The Technology Center, China Tobacco Yunnan Industry Company (Ltd.) , Kunming 650000 , China.
authors.forename: Cheng-Ming
authors.initials: CM
authors.lastname: Zhang
authors.affiliation: a Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University , Kunming 650031 , China.
authors.forename: Yue-De
authors.initials: YD
authors.lastname: Wang
authors.affiliation: a Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University , Kunming 650031 , China.
authors.forename: Wei
authors.initials: W
authors.lastname: Dong
authors.affiliation: a Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University , Kunming 650031 , China.
authors.forename: Jie
authors.initials: J
authors.lastname: Lou
authors.affiliation: a Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University , Kunming 650031 , China.
authors.forename: Bing-Kun
authors.initials: BK
authors.lastname: Ji
authors.affiliation: a Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University , Kunming 650031 , China.
authors.forename: Xue-Mei
authors.initials: XM
authors.lastname: Gao
authors.affiliation: a Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University , Kunming 650031 , China.
authors.forename: Ming-Ming
authors.initials: MM
authors.lastname: Miao
authors.affiliation: a Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University , Kunming 650031 , China.
authors.forename: Qiu-Fen
authors.initials: QF
authors.lastname: Hu
mesh_terms: D000998:Antiviral Agents / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D002366:Cassia / Q000737:chemistry*; D047309:Flavones / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D018515:Plant Leaves / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry; D014027:Tobacco Mosaic Virus / Q000187:drug effects*
chemical_list: D000998:Antiviral Agents; D047309:Flavones; C000603694:siameflavone A; C000603695:siameflavone B
keywords: Leguminosae; Cassia siamea; anti-tobacco mosaic virus; flavones