Monoterpene and lignan glycosides in the leaves of Crataegus pinnatifida

In the present phytochemical study on the leaves of Crataegus pinnatifida, a new monoterpene glycoside, (3S,5R,6R,7E,9R)-3,6-epoxy-7-megastigmen-5,9-diol-9-O-β-Dglucopyranoside(6) and a new sesquilignan glycoside, acernikol-4’’-O-β-D-glucopyranoside (15), together with thirteen known compounds were isolated.

Research highlights
► Two new compounds were isolated from the leaves of Crataegus pinnatifida. The names of new compounds were (3S,5R,6R,7E,9R)-3,6-epoxy-7-megastigmen-5,9-diol-9-O-β-d-glucopyranoside (6) and acernikol-4″-O-β-d-glucopyranoside (15). Their structures were identified by a combination of spectroscopic methods (MS, CD, 1D and 2D NMR).