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Bioactive pyranoxanthones from the roots of Calophyllum blancoi
被引:46
|作者:
Shen, YC
Wang, LT
Khalil, AT
Chiang, LC
Cheng, PW
机构:
[1] Natl Sun Yat Sen Univ, Inst Marine Resources, Kaohsiung 80424, Taiwan
[2] Kaohsiung Med Univ, Kaohsiung, Taiwan
关键词:
Calophyllum blancoi;
Guttiferae;
pyranoxanthones;
blancoxanthone;
antiviral activity;
D O I:
10.1248/cpb.53.244
中图分类号:
R914 [药物化学];
学科分类号:
100701 ;
摘要:
Phytochemical investigation of the roots of Calophyllum blancoi growing in Taiwan resulted in the isolation of three new pyranoxanthones, blancoxanthone (1), acetyl blancoxanthone (2) and 3-hydroxyblancoxanthone (3), in addition to two known pyranoxanthones, pyranojacaeubin (4) and caloxanthone (5). Structural characterization of the isolated compounds was determined by spectral analyses especially 2-D NMR. Biological study of the isolated xanthones revealed that blancoxanthone (1) exhibited significant anti-coronavirus activity.
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页码:244 / 247
页数:4
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