schisantherin d/schisandra sphenanthera

Three new 7,8-secolignans, schisandlignans A-C (1, 2, and 4), one new dibenzocyclooctadiene lignan, schisandlignan D (5), together with nine known lignans 3',4'-dimethoxybenzoic acid (3″,4″-dimethoxyphenyl)-2-methyl-3-oxobutyl ester (3), gomisin J (6), rubrisandrin A(1b) (7), interiotherin B (8),

OBJECTIVE To study the chemical constituents in the fruits of Schisandra sphenanthera. METHODS The constituents were isolated by their silica gel column, Sephadex LH-20 gel column, and their structures were elucidated by their chemical properties and spectroscopic analyses. RESULTS Twelve compounds

The fruit of S. sphenanthera, known as "Nanwuweizi", has been widely used as traditional Chinese medicine for several thousand years. However, the current determination methods are not sufficient to evaluate its quality. An accurate, sensitive and reliable high performance liquid chromatography