A new pterocarpan, (-)-maackiain sulfate, from the roots ofSophora subprostrata
2003
Park, Jeong An | Kim, Hyoung Ja | Jin, Changbae | Yi, Kyŏng-t'ae | Lee, Yong Sup
A new pterocarpan, (-)-maackiain 3-sulfate (1) was isolated from the methanol extract of roots of Sophora subprostarata together with (-)-maackiain (2), trifolirhizin (3), lupeol (4), ononin (5), 7,4′-dihydroxyflavone (6), and (+)-syringaresinol (7). The structure of1 was determined by analyses of 2D NMR and HRFABMS. Compounds5–7 were isolated from this plant for the first time.
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