Abstract
Caragiside D (1), a new isoflavone glucoside, has been isolated from the n-BuOH soluble subfraction of the MeOH soluble extract of the whole plant of Caragana conferta along with one known isoflavone glucoside, caragiside A (2), and two lignan glucosides, pinoresinol 4-O-glucoside (3) and syringaresinol 4-O-glucoside (4). The structures of these compounds were elucidated through spectroscopic techniques including MS and 2D NMR. The purity of compound 1 was confirmed by HPLC.