Isolation and identification the chemical constituents of Przewalskia tangutica Maxim.

Isolation and identification the chemical constituents of Przewalskia tangutica Maxim.
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发表时间:
2013
期刊:
Journal of Shenyang Pharmaceutical University
影响因子:
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通讯作者:
Shao Jun-ji
Shao Jun-ji
中科院分区:
其他
文献类型:
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作者:
Shao Jun-ji

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目的研究唐古特普氏原羚的化学成分。方法采用硅胶柱色谱、Sephadex LH-20柱色谱和半制备型HPLC色谱进行分离纯化,通过ESI-MS、1H-NMR、13 C-NMR、1H-1HCOSY、HMQC和HMBC波谱技术进行结构鉴定。结果从唐古特杨地上部分的氯仿提取物和乙酸乙酯提取物中分离得到16个化合物,鉴定为莨菪碱(1),山莨菪碱(2),东莨菪碱(3),3 α-托品基-dl-3-羟基-3-苯基丙酸酯(4),托品碱(5),胸腺嘧啶(6),胞苷(7),肌苷(8),对羟基苯甲酸(9),香草酸(10),E-肉桂酸(11),E-对甲氧基肉桂酸(12),托品酸(13),solavetivone(14)东莨菪碱(15)和熊果酸(16)。结论化合物4为新天然产物,化合物6-14和16为首次从普氏原羚属植物中分离得到。
Objective To study the chemical constituents of Przewalskia tangutica Maxim. Methods The compounds w ere isolated by silica gel,Sephadex LH-20 column chromatography and semipreparative HPLC chromatography and structures w ere established by ESI-MS,1H-NMR,13C-NMR,1H-1HCOSY,HMQC and HMBC spectroscopic studies. Results Sixteen compounds w ere isolated from the CHCl3extract and EtOAc extract of the aerial parts of P. tangutica Maxim.,and their structures w ere identified as hyoscyamine (1),anisodamine (2),hyoscine (3),3α-tropanyl-dl-3-hydroxy-3-phenylpropionate (4),tropine (5),thymine (6),cytidine (7),inosine (8),p-hydroxylbezoic acid (9),vanillic acid (10),E-cinnamic acid (11),E-pmethoxycinnamic acid( 12),tropic aci (13),solavetivone (14),scopoletin (15) and ursolic acid (16),respectively. Conclusions Compound 4 is a new natural product,compounds 6-14 and 16 are isolated from the genus Przewalskia for the first time.