A sesquiterpene glycoside, loquatifolin A, from the leaves of Eriobotrya japonica.

The structure of a new sesquiterpene glycoside, loquatifolin A (1), isolated from the leaves of Eribotrya japonica (THUNB.) LINDLE, was established to be α-L-rhamnopyranosyl(1→4)-α-L-rhamnopyranosyl(1→2)-[α-L-rhamnopyranosyl(1→6)]-β-D-glucopyranosyl-6, 7-trans-neloridol on the basis of chemical and spectral studies.