Iridoid glycosides ofVerbascum laxum

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 1987 English Publisher:Springer Science and Business Media LLCJournal:Chemistry of Natural Compounds, volume 23, pages 75-79 (issn: 0009-3130, eissn: 1573-8388,

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Authors: �. Yu. Agababyan; L. S. Arutyunyan; V. A. Mnatsakanyan;

doi: 10.1007/bf00602462

Iridoid glycosides ofVerbascum laxum

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Abstract

The epigeal part ofVerbascum laxum Filar, et Jav. has yielded in addition to the known sinuatol, a new iridoid glycoside — 6-0-(3″-0-p-coumaroyl-α-L-rhamnopyranosyl)aucubin (I), [α] D 20 −174.2±0.7° (c 1.4; MeOH). From the roots of the plant, as the main components giving an iridoid reaction, have been isolated harpagoside and the new iridoid glycoside 6-0-(2″,3″-di-0-acyl[acetyl,p-methoxy-trans-cinnamoyl]-α-L-rhamnopyranosyl)aucubin (V) [α] D 18 −130±2° (c 0.5; MeOH). The structures of the substances isolated were established with the aid of UV, IR, NMR, and mass spectra.

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