(+)-12alpha-Hydroxysophocarpine (8), a new quinolizidine alkaloid was isolated from the roots of Sophora flavescens, together with 10 known quinolizidine alkaloids, (+)-oxymatrine (1), (+)-matrine (2), (+)-9alpha-hydroxymatrine (3), (+)-allomatrine (4), (+)-oxysophocarpine (5), (-)-sophocarpine (6),
To study the chemical constituents in the bark of Sophora japonica.
The chemical constituents were separated and purified by silica gel,Sephadex LH-20 column chromatography,and HPLC. Their structures were identified by various spectroscopic analyses.
Eleven compounds were obtained from the bark of