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[摘要]
目的研究天麻中的强极性成分。方法大孔吸附树脂柱结合制备液相色谱分离、光谱分析及理化常数比较鉴定结构。结果从天麻大孔吸附树脂水洗脱部位及20%乙醇洗脱部位分离并鉴定了10个化合物,分别为柠檬酸单乙酯(Ⅰ)、尿苷(Ⅱ)、腺嘌呤(Ⅲ)、肿根糖A(dactylose A,Ⅳ)、尿嘧啶(Ⅴ)、酪氨酸(Ⅵ)、N2-(对羟苄基)-鸟苷(Ⅶ)、1-异阿魏酸-β-D-吡喃葡萄糖苷(Ⅷ)、4-(β-D-吡喃葡萄糖氧)苯甲醛(Ⅸ)、对羟基苯甲酸(Ⅹ)。结论化合物Ⅶ为新化合物,命名为天麻核苷(gastronucleoside),其他9个化合物均为天麻首次报道成分。
[Key word]
[Abstract]
Objective To study the high polar constituents of Gastrodia elata.Methods The constituents were isolated by macroporous resin column chromatography combined with preparative HPLC and identified by spectral analyses and physico-chemical properties comparisons.Results Ten compounds were isolated from H2O and 20% EtOH fractions eluted from resin column and their structures were identified as citric acid monoethyl ester(Ⅰ),uridine(Ⅱ),adenine(Ⅲ),dactylose A(Ⅳ),uracil(Ⅴ),tyrosine(Ⅵ),N2-(p-hydroxybenzyl) guanosine(Ⅶ),1-isoferuloyl-β-D-glucopyranoside(Ⅷ),4-(β-D-glucopyranosyloxy) benzaldehyde(Ⅸ),and p-hydroxyl benzoic acid(Ⅹ).Conclusion Compound Ⅶ is a new compound named gastronucleoside.Other nine compounds are isolated from G.elata for the first time.
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[基金项目]
中国科学院知识创新工程重要方向性项目(KGCX2-SW-213)
