刘鹏#, 祝琳琳#, 靖淑瑾, 李想, 苏成园, 张薇*, 刘斌*. 中药玄参中的2个新生物碱J. 药学学报, 2022,57(3): 750-756. doi: 10.16438/j.0513-4870.2021-1403
引用本文: 刘鹏#, 祝琳琳#, 靖淑瑾, 李想, 苏成园, 张薇*, 刘斌*. 中药玄参中的2个新生物碱J. 药学学报, 2022,57(3): 750-756. doi: 10.16438/j.0513-4870.2021-1403
LIU Peng#, ZHU Lin-lin#, JING Shu-jin, LI Xiang, SU Cheng-yuan, ZHANG Wei*, LIU Bin*. Two new alkaloids from the roots of Scrophularia ningpoensis Hemsl.J. Acta Pharmaceutica Sinica, 2022,57(3): 750-756. doi: 10.16438/j.0513-4870.2021-1403
Citation: LIU Peng#, ZHU Lin-lin#, JING Shu-jin, LI Xiang, SU Cheng-yuan, ZHANG Wei*, LIU Bin*. Two new alkaloids from the roots of Scrophularia ningpoensis Hemsl.J. Acta Pharmaceutica Sinica, 2022,57(3): 750-756. doi: 10.16438/j.0513-4870.2021-1403

中药玄参中的2个新生物碱

Two new alkaloids from the roots of Scrophularia ningpoensis Hemsl.

  • 摘要: 采用常压硅胶柱色谱、Sephadex LH-20柱色谱、反相柱色谱及半制备高效液相色谱等色谱技术对玄参科玄参属植物玄参(Scrophularia ningpoensis Hemsl.)干燥根的70%乙醇提取物进行化学成分研究,共分离得到13个化合物,依据其理化性质及UV、IR、NMR、MS、ECD等多种波谱分析方法鉴定了化合物的结构,分别为11α-isopropylcytisine (1)、13α-isopropylcytisine (2)、尿嘧啶(3)、(S)-5-羟基吡咯烷-2-酮(4)、pterolactam (5)、methyl-L-pyroglutamate (6)、山柰素(7)、木犀草素(8)、5,6,7,4'-四甲氧基黄酮(9)、6'-羟基-2',3',4,4'-四甲氧基查尔酮(10)、东莨菪苷(11)、hymexelsin (12)和8-羟基香豆素(13),其中,化合物12为新化合物,化合物34712首次从该植物中分离得到。通过对分离得到的化合物进行肿瘤细胞毒活性研究,结果表明化合物89对小鼠乳腺癌细胞(4T1)具有微弱的细胞毒活性。

     

    Abstract: Two new alkaloids along with eleven known ones, were isolated from the 70% ethanol extract of the roots of Scrophularia ningpoensis Hemsl. by various chromatographic methods, including silica gel, Sephadex LH-20, reverse phase C18 and semi-preparative HPLC. Their structures were determined by physicochemical properties and spectroscopic methods, including UV, IR, MS, 1D/2D NMR and ECD. They were identified as 11α-isopropylcytisine (1), 13α-isopropylcytisine (2), uracil (3), (S)-5-hydroxypyrrolidin-2-one (4), pterolactam (5), methyl-L-pyroglutamate (6), kaempferide (7), luteolin (8), 5,6,7,4'-tetramethoxyflavone (9), 6'-hydroxy-2',3',4,4'-tetramethoxychalcone (10), scopolin (11), hymexelsin (12), and 8-hydroxycoumarin (13). Among them, compounds 1 and 2 are two new compounds, while compounds 3, 4, 7-12 were isolated from this plant for the first time. An antitumor activity assay showed that compounds 8 and 9 had weak cytotoxicity against breast cancer cells (4T1).

     

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