Chromones from the stems of Cassia fistula and their anti-tobacco mosaic virus activities

被引:26
|
作者
Li, Yinke [1 ,2 ,3 ]
Meng, Yanlin [2 ,3 ]
Yang, Yuchun [2 ,3 ]
Qin, Ying [2 ,3 ]
Xia, Congfang [2 ,3 ]
Ye, Yanqing [2 ,3 ]
Gao, Xuemei [2 ,3 ]
Hu, Qiufen [2 ,3 ]
机构
[1] Yuxi Normal Univ, Coll Resource & Environm, Yuxi 653100, Peoples R China
[2] Yunnan Univ Nationalities, Key Lab Chem Ethn Med Resources, State Ethn Affairs Commiss, Kunming 650031, Peoples R China
[3] Yunnan Univ Nationalities, Minist Educ, Kunming 650031, Peoples R China
基金
中国国家自然科学基金;
关键词
Cassia fistula; Chromones; Anti-tobacco mosaic virus activity; DERIVATIVES; SIAMEA; PLANT;
D O I
10.1016/j.phytol.2014.07.007
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Three new chromones, 5-methoxy-2,2-dimethyl-7-(2-oxopropyl)-2,3-dihydrochromen-4-one (1), 5-methoxy- 2,2-dimethyl-8-(2-oxopropyl)-2,3-dihydrochromen-4-one (2), and 1-(3,4-dihydro-5-methoxy- 2,2-dimethyl-2H-chromen-7-yl)propan-2-one (3), together with four known chromones (4-7) were isolated from the stems of Cassia fistula. 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) activities. The results showed that compound 5 exhibited high anti-TMV activity with inhibition rate of 30.8% at a concentration of 20 mu M. The other compounds also exhibited potential anti-TMV activities with inhibition rates in the range of 15.6-22.1% at the same concentration. (C) 2014 Published by Elsevier B.V. on behalf of Phytochemical Society of Europe.
引用
收藏
页码:46 / 49
页数:4
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