Chemical constituents of n-butanol fraction from stems of Schisandra chinensis / 中草药

ABSTRACT

Objective: To study the chemical constituents of n-butanol fraction from the stems of Schisandra chinensis. Methods: The constituents were separated and purified by chromatographic technology, which structures were elucidated by physicochemical constants and spectral data analyses. Results: Fourteen chemical constituents were isolated from the n-butanol extract in the stems of S. chinensis, and the structures were identified as quercertin (1), quercertin-3-O-β-D-glucopyranoside (2), quercetin-3-O-β-D-xylopyranoside (3), rutin (4), apigenin (5), apigenin-7-O-β-D-glucopyranoside (6), isorhamnetin-3-O-β-D-glucopyranoside (7), genistein-7-O-β-D-glucopyranoside (8), chlorogenic acid (9), ferulaic acid (10), caffeic acid (11), oleanolic acid (12), (+)-catechin-7-O-β-D-glucopyranoside (13), and daucosterol (14). Conclusion: The compounds 3, 7, 8, and 13 are obtained from this plant for the first time.