Fitoterapia 2015-Sep
Plantagiolides K-N, three new withanolides and one withanolide glucoside from Tacca plantaginea.
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نبذة مختصرة
Phytochemical investigation of the whole plants of Tacca plantaginea led to the isolation of 3 new withanolides and one new withanolide glucoside, named plantagiolides K-N (1-4), together with one known withanolide, 4 known withanolide glucosides, and 2 known taccalonolides. Their structures were elucidated by extensive spectroscopic analysis. Compound 4 is the first withanolide glycoside which the sugar moiety is attached at C-7. The effects of the some of isolates on TNFα-induced NF-κB transcriptional activity and cytotoxicity were evaluated.