Karsoside and scropolioside D, two new iridoid glycosides from Scrophularia ilwensis |
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Authors: | I Cali? M Zor AA Ba?aran AD Wright O Sticher |
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Affiliation: | Department of Pharmacognosy, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey. |
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Abstract: | Two new iridoid glycosides, karsoside 1] and scropolioside D 2], were isolated from the aerial parts of Scrophularia ilwensis. Their structures were elucidated on the basis of chemical and spectral data as 6'-O-(beta-D-xylopyranosyl)-methylcatalpol and 6-O-(2",4"-di-O-acetyl-3"-O-trans-cinnamoyl)-alpha-L-rhamnopyranosyl]- catalpol, respectively. Additionally, four known iridoids (aucubin, harpagide, 8-O-acetylharpagide, and ajugol), a phenylpropanoid glycoside (angoroside C), and two flavonoids (quercetin-3-O-rutinoside and kaempferol-3-O-rutinoside) were isolated and identified. |
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