[Sesquiterpenes from stem of Schisandra glaucescens].
Ключавыя словы
Рэферат
OBJECTIVE
To study the chemical constituents from Schisandra glaucescens.
METHODS
The chemical constituents were separated and purifed with silica gel, gel column chromatography preparative HPLC, and their structures were identified by such spectral methods as MS and NMR.
RESULTS
Twelve compounds were separated from petroleum ether fractions, and identified as t-cadinol (1), alpha-cadinol (2), torreyol (3), (+)-ent-epicubenol (4), ent-T-muurolol (5), (-)-15-hydroxycalamenene (6), (-)-cubebol (7), 4-epi-cubebol (8), caryophyllenol-I (9), caryophyllenol-II (10), oxyphyllenodiols A (11), caryolane-1,9/3-diol (12).
CONCLUSIONS
Compounds 4, 6-12 were separated from the genus for the first time, while compounds 1-12 were separated from this plant for the first time.
