GLYCOSIDES FROM WAHLENBERGIA-MARGINATA

Repeated fractionation of an aqueous ethanol extract of the whole herb of Wahlenbergia marginata afforded six ionone-related and five phenyl propanoid-derived glycosides. The structures of the five new compounds were established by spectroscopic and chemical methods as ta-D-glucop yranosyloxy)ethyl-cyclohexa-2-en-l-one, demethyl syringin, wahlenoside s A, B and C, respectively. All constituents were not active against t he human pathogenic fungi Candida albican, Trichoderma viride and Aspe rgillus flavus. (C) 1998 Elsevier Science Ltd. All rights reserved.