Chemical Constituents from Leaves of Camellia nitidissima var.longistyla
Author(s): ZHOU Jie-jie, MO Jian-guang, CHEN Qiu-hong, QIN Zu-qian, LIU Bu-ming, CHAI Ling, Guangxi University of Chinese Medicine, Guangxi Center for Analysis and Test Research, The People’s Hospital of Guangxi Guigang City, Guangxi Key Laboratory of Tradtitonal Chinese Medicine Quality Stardands
Pages: 637-640
Year: 2015 Issue: 6
Journal: Guangxi Sciences
Keyword: Camellia nitidissimavar.longistyla; chemical constituents; isolation; identifition;
Abstract: 【Objective】The chemical constituents of Camellia nitidissimavar.longistyla were investigated.【Methods】Column chromatographies,such as silica gel adsorption chromatography,thin layer chromatography,high performance liquid chromatography preparation,recrystallization,and other modern methods and techniques were used to isolate and purify the chemical constituents.They were further determined by UV,IR,1 H-NMR,13C-NMR,MS and other spectroscopic methods.【Results】Eight compounds were identified from C.nitidissima var.longistyla,including stigmasterol（1）,stigmast-7-en-3-ol（2）,astilbin（3）,eucryphin（4）,quercetin-3-O-α-L-rhamnopyranoside（5）,quercetin-3-O-D-glucopyranoside（6）,palmitic acid（7）and 3β-acetoxy-6a,13β-dihydroxyolean-7-one（8）.【Conclusion】Except for stigmasterol,the remaining seven compounds were first isolated from the plant of this species.
Pages: 637-640
Year: 2015 Issue: 6
Journal: Guangxi Sciences
Keyword: Camellia nitidissimavar.longistyla; chemical constituents; isolation; identifition;
Abstract: 【Objective】The chemical constituents of Camellia nitidissimavar.longistyla were investigated.【Methods】Column chromatographies,such as silica gel adsorption chromatography,thin layer chromatography,high performance liquid chromatography preparation,recrystallization,and other modern methods and techniques were used to isolate and purify the chemical constituents.They were further determined by UV,IR,1 H-NMR,13C-NMR,MS and other spectroscopic methods.【Results】Eight compounds were identified from C.nitidissima var.longistyla,including stigmasterol（1）,stigmast-7-en-3-ol（2）,astilbin（3）,eucryphin（4）,quercetin-3-O-α-L-rhamnopyranoside（5）,quercetin-3-O-D-glucopyranoside（6）,palmitic acid（7）and 3β-acetoxy-6a,13β-dihydroxyolean-7-one（8）.【Conclusion】Except for stigmasterol,the remaining seven compounds were first isolated from the plant of this species.
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