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Flavonoid glycosides from the rhizomes of Pronephrium penangianum
Phytochemistry ( IF 3.2 ) Pub Date : 2020-11-01 , DOI: 10.1016/j.phytochem.2020.112500 Bingbing Shen 1 , Shenghuang Chen 2 , Qi Zhou 2 , Yuqing Jian 2 , Muhammad Daniyal 2 , Wenbing Sheng 2 , Limin Gong 2 , Dixian Luo 3 , Bin Liu 4 , Guangming Xu 2 , Wei Wang 2
Phytochemistry ( IF 3.2 ) Pub Date : 2020-11-01 , DOI: 10.1016/j.phytochem.2020.112500 Bingbing Shen 1 , Shenghuang Chen 2 , Qi Zhou 2 , Yuqing Jian 2 , Muhammad Daniyal 2 , Wenbing Sheng 2 , Limin Gong 2 , Dixian Luo 3 , Bin Liu 4 , Guangming Xu 2 , Wei Wang 2
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Six flavonoid glycosides jixueqisus A-F, together with nine known flavonoids, were isolated from the rhizomes of the fern Pronephrium penangianum. Among them, two red pigments jixueqisus A and B possess the same rare 6,8-dimethyl-2-phenyl-7H-1-benzopyran-7-one skeleton (a long conjugated system). Jixueqisu Cwas a dihydrochalcone glycoside, jixueqisu D was a chalcone glycoside, jixueqisu E was an aurone glycoside, and jixueqisu F was a flavonone glycoside. Interestingly, jixueqisus D-F, (2S)-5,2',5'-trihydroxy-7-methoxyflavanone and 5,2',5'-trihydroxy-7-methoxyflavone possessed a 2,5-dihydroxy substituted benzene ring (B-ring). Their structures were elucidated by various spectroscopic and chemical methods. Furthermore, the plausible biosynthetic pathways of jixueqisus A-F were discussed, respectively. All isolated compounds were evaluated for their activities against the proliferation of MCF-7, HepG-2, HCT-116 and BGC-823 tumor cell lines, four known flavane-4-ol glycosides, abacopterins A and C, eruberin B and triphyllin A, exhibited moderate activities to various cell lines.
中文翻译：
来自槟榔根茎的黄酮苷
从蕨类植物 Pronephrium penangianum 的根茎中分离出 6 种黄酮苷类 jixueqisus AF，以及 9 种已知的黄酮类化合物。其中，两种红色颜料jixueqisus A和B具有相同的罕见6,8-二甲基-2-苯基-7H-1-苯并吡喃-7-one骨架（长共轭体系）。鸡血芪素C为二氢查尔酮苷，鸡血芪素D为查耳酮苷，鸡血芪素E为金黄酮苷，鸡血芪素F为黄酮苷。有趣的是，鸡血奇素 DF, (2S)-5,2',5'-trihydroxy-7-methoxyflavanone 和 5,2',5'-trihydroxy-7-methoxyflavone 拥有一个 2,5-dihydroxy 取代的苯环（B-ring ）。通过各种光谱和化学方法阐明了它们的结构。此外，分别讨论了鸡血芪AF可能的生物合成途径。
更新日期：2020-11-01
中文翻译：
来自槟榔根茎的黄酮苷
从蕨类植物 Pronephrium penangianum 的根茎中分离出 6 种黄酮苷类 jixueqisus AF，以及 9 种已知的黄酮类化合物。其中，两种红色颜料jixueqisus A和B具有相同的罕见6,8-二甲基-2-苯基-7H-1-苯并吡喃-7-one骨架（长共轭体系）。鸡血芪素C为二氢查尔酮苷，鸡血芪素D为查耳酮苷，鸡血芪素E为金黄酮苷，鸡血芪素F为黄酮苷。有趣的是，鸡血奇素 DF, (2S)-5,2',5'-trihydroxy-7-methoxyflavanone 和 5,2',5'-trihydroxy-7-methoxyflavone 拥有一个 2,5-dihydroxy 取代的苯环（B-ring ）。通过各种光谱和化学方法阐明了它们的结构。此外，分别讨论了鸡血芪AF可能的生物合成途径。
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