Six compounds were isolated from the stems and roots of S. propinqua var. sinensis. One is a new lignan named epienshicine (I), m.p. 163-164? [a]D11.5 -18.2?(CHCl3), which was shown to be 1-oxy-2R,3S-dimethyl-4R-(3-methoxy-4-hydroxyphenyl)-6,7-methylenedi oxytetralin by means of spectral anal. and chem. transformation into (+)-galcatin. The remaining five compounds were identified as enshicine, isoschisandrolic acid (II), deoxyschizandrin, b-sitosterol, and stearic acid, in which II is isolated from the natural resources for the first time. I shows activity against leukemia P-388 in vitro.

Key words: STEARIC ACID, CONFIGURATION, STIGMASTANES, CHEMICAL COMPOSITION, SCHISANDRA PROPINQUA, SCHISANDRA CHINENSIS