Chemical Constituents of the Rhizomes of Bletilla formosana and Their Potential Anti-inflammatory Activity
Chemical Constituents of the Rhizomes of Bletilla formosana and Their Potential Anti-inflammatory Activity
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DOI:
10.1021/acs.jnatprod.6b00118
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发表时间:
2016-08-01
影响因子:
5.1
通讯作者:
Wu, Tian-Shung
中科院分区:
文献类型:
--
作者:
Lin, Che-Wei;Hwang, Tsong-Long;Wu, Tian-Shung
Nine new phenanthrenes (1-9) and a new benzyl glycoside (10) together with 45 known compounds were isolated from the rhizomes of Bletilla formosana. The structures of 1-10 were elucidated primarily on the basis of their ID and 2D NMR spectroscopic data. Most of the isolated compounds were evaluated for their anti-inflammatory activities. The results showed that IC50 values for the inhibition of superoxide anion generation and elastase release ranged from 0.2 to 6.5 mu M and 0.3 to 5.7 mu M, respectively. Structure activity relationships of the isolated compounds were also investigated. The inhibitory potencies were determined as phenanthrenes > bibenzyls > biphenanthrenes.