องค์ประกอบทางเคมีของรากพิษนาด (Sophora exigua Craib.) / สำเนียง อภิสันติยาคม = Chemical constituents of the roots of Sophora exigua Craib / Samneang Apisantiyakom
Dry roots of Sophora exigua craib were extracted with 95% ethanol and the obtained material was further extracted by chroroform, water, 80% methanol and hexane, respectively, Separation by column chromatography, quick column chromatography, from which five compounds were separated. Identification was carried out by using physical and chemical properties including IR, (superscript 1)H-(superscript 1)HNMR, (superscript 13)C-NMR, (superscript 1)H-(superscript 1) Cosy, (superscript 1)H-(superscript 1) Noesy and mass spectra. The four identified compounds were 8-Lavanduly 1-7-methoxy-5, 2’, 6’-trihydroxyflavanone, 8-Lavanduly1-3, 5, 7, 2’, 6’–pentahydroxyflavanone, 8-Lavanduly1-5, 7, 2’, 4’, 6’ -pentahydroxyflavanone, 8-Lavanduly1-5, 7,2’, 6’ – tetrahydroxyflavanone. For the fifth compound can not eclucidate the molecular structure.