Abstract
From the epigeal part of the plantClimacoptera transoxana (Iljin) Botsch. have been isolated new triterpene glycosides — copterosides G and H, which are bisdesmosidic glycosides. On the basis of chemical transformations and spectral characteristics, copteroside G has been assigned the structure of gypsogenic acid 28-O-β-D-glucopyranoside 3-O-β-D-glucuronopyranoside, while copteroside H is gypsogenic acid 28-O-β-D-glucopyranoside 3-O-[O-β-D-xylopyranosyl-(1 → 2)-β-glucuronopyranoside].
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