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了哥王(Wikstroemia indica)在台湾省用于治疗咳嗽和关节炎。作者等从台湾省产的了哥王茎的甲醇提取物中分得-新木脂体(+)-去甲络石甙元[(+)-Nortrachelogenin]。提取分离:取了哥王茎片,用甲醇在热水浴上提取,真空浓缩至糖浆状,加水过滤得暗棕色残渣,室温干燥,继用乙醚提取,浓缩得黄色树脂状固体。取粗提物用硅胶柱层析〔苯-丙酮(5:1)〕,每组分再进行薄层层析,相继得几个组分。一组分用偏钒酸铝显色,浓缩后得淡黄
Wikstroemia indica is used in Taiwan to treat cough and arthritis. The authors obtained the new lignan (+) - detoxintone [(+) - Nortrachelogenin] from the methanol extract of the stem of King Gordon produced in Taiwan. Extraction and isolation: Take Columbia King stem slices, extracted with methanol on a hot water bath, concentrated in vacuo to a syrup, add water filtered dark brown residue, dried at room temperature, followed by extraction with ether, concentrated to give a yellow resinous solid. The crude extract was purified by silica gel column chromatography [benzene-acetone (5: 1)], and each layer was further subjected to thin-layer chromatography to obtain several fractions in succession. A group with aluminum metavanadate color, concentrated to give yellow