Abstract
Reversed-phase preparative HPLC of a methanol extract of the rhizomes of Eremostachys glabra yielded three new iridoid glycosides, namely, 6,9-epi-8-O-acetylshanziside methyl ester (1), 5,9-epi-penstemoside (2), and 5,9-epi-7,8-didehydropenstemoside (3). Their structures were elucidated on the basis of spectroscopic data interpretation. The free-radical scavenging activity of these compounds was assessed using the DPPH assay.
Original language | English |
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Pages (from-to) | 1584-1587 |
Number of pages | 4 |
Journal | Journal of Natural Products |
Volume | 67 |
Issue number | 9 |
DOIs | |
Publication status | Published - 1 Sep 2004 |