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作 者 ：元 超1，吴长生2，李 刚2，郭玉华1，赵遵田3*

期 刊 ：西北植物学报 2013年 7期 页码：1478~1480

关键词：金丝带；缩酚酸类；地衣；

Keywords:Lethariella zahlbruckneri, depside derivatives, lichens,

摘 要 ：对采自青海省的金丝带［Lethariella zahlbruckneri (Dr.) Krog.]的乙酸乙酯部分进行研究，采用硅胶柱色谱、半制备高效液相和重结晶技术进行分离纯化，通过¹H-NMR、¹³C-NMR技术对化合物结构进行鉴定，结果共分离鉴定了5个化合物，包括：1个缩酚酸类：雪茶素(5)；4个缩酚酸和缩酚酸环醚裂解产物：赤星衣酸甲酯(1),β-苔黑酚酸甲酯(2),苔色酸甲酯(3)和苔色酸乙酯(4)。其中化合物1、3、4、5均为首次从该植物中分得。

Abstract:The chemical constitutes of the EtOAc fraction from Lethariella zahlbruckneri (Dr.) Krog.,collected from Qinghai Province,were studied.Five compounds were isolated by repeated gel column chromatography,semi-prepared HPLC and re-crystallization.Their structures were characterized by ¹H-NMR and ¹³C-NMR.Compound 5 is vermicularin,belongs to depsides;Compound 1 is Methyl haematommate;Compound 2 is methyl β-orcinolcarboxylate;Compound 3 is methyl orsellinate;Compound 4 is ethyl orsellinate;The above four compounds all belong to cleavage products of depsides and depsidones.Compounds 1 , 3 , 4 , 5 were isolated from L.zahlbruckneri for the first time.

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