The butanol extract of the flowers of Ononis vaginalis Vahl. Symb. afforded two new norphenylpropanoid glucosides, 1-b-D-glucopyranosyl-2-(4-hydroxyphenyl) (E)-ethene (trans-vaginoside), 1-b-D-glucopyranosyl-2-(4-hydroxyphenyl) (Z)-ethene (cis-vaginoside) as well as the known flavanone C-glucoside, (+)-6-C-b-D-glucopyranosyl (2S) naringenin (hemipholin). The structures of the isolated compounds were established utilizing chemical and spectroscopic methods.
Ononis vaginalis; fabaceae, norphenylpropanoid glucosides; flavanone C-glucoside
