期刊
PHYTOCHEMISTRY
卷 64, 期 7, 页码 1253-1264出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.phytochem.2003.09.008
关键词
Clinacanthus nutans; Acanthaceae; synthesis; anti-herpes simplex activity; monoglycosyl diglycerides; 1,2-O-diacyl-3-O-beta-D-glycopyranosyl-glycerols
Based on the discovery of antiviral beta-galactosyl diglycerides from Clinacanthus nutans leaves, 19 monoglycosyl diglycerides were synthesized and examined for inhibitory effect on herpes simplex virus types I and 2 (HSV-1, HSV-2). A study of the structure-activity relationships of the synthetic monoglycosyl diglycerides indicated that the fatty acyl moieties were critical for inhibitory action with higher activity displayed as the acyl groups became more olefinic in character. The sugar moiety was also important for anti-HSV action; however, the type of sugar (glucose or galactose) did not affect activity. The stereochemistry at C-2 of the glycerol backbone displayed no significant effect on anti-HSV activity. Among the compounds synthesized, 1,2-O-dilinolenoyl-3-O-beta-D-glucopyranosyl-sn-glycerol showed the highest inhibitory activity against HSV-1 and HSV-2 with IC50 values of 12.5 +/- 0.5 and 18.5 +/- 1.5 mug/ml, respectively. (C) 2003 Elsevier Ltd. All rights reserved.
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