Chemical Constituents fromMyrsine africanaL.

Four lignan xylosides and two neolignan glycosides were isolated from the stem and root barks of Ulmus davidiana var. japonica. Their structures were identified as lyoniside, nudiposide, 5'-methoxyisolariciresinol-9'-O-beta-D-xylopyranoside, isolariciresinol-9'-O-1-D-xylopyranoside, rel-trans-dihydrodehydroconiferyl alcohol 4'-O-alpha-L-rhamnopyranoside and icariside E3 by comparison of their spectral data with those reported in the literatures, respectively.

Reinvestigation of the polar fractions from the stem bark of STEMMADENIA MINIMA A. Gentry (Apocynaceae) afforded two known and four new lignan glucosides. Their structures were deduced by spectroscopic and chemical methods.