Studies on the glycosides of Epimedium grandiflorum MORR. var. thunbergianum (MIQ.) NAKAI. I.

Abstract

A new phenolic glycoside, icariside A1 (IV), and six new terpenic glycosides, icariside B1 (V), B2 (VI), C1 (VII), C2 (VIII), C3 (IX), and C4 (X), have been isolated from Epimedium grandiflorum MORR. var. thunbergianum (MIQ.) NAKAI, together with three known glycosides, salidroside (I), thalictoside (II) and benzyl glucoside (III). The structures of IV-X were established on the basis of chemical evidence and spectral data.