| Isolation and Identification of 5,3′,4′-Trihydroxy-7-methoxyflavanone from Artemisia sphaerocephala Kraschen |
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| 引用本文： | 王勇,庆伟霞,李林玺,赵东保,刘绣华.Isolation and Identification of 5,3′,4′-Trihydroxy-7-methoxyflavanone from Artemisia sphaerocephala Kraschen[J].结构化学,2014(2):199-203. |
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| 作者姓名： | 王勇 庆伟霞 李林玺 赵东保 刘绣华 |
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| 作者单位： | [1]Institute of Environmental and Analytical Sciences, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China [2]Medical College, Henan University, Kaifeng 475004, China |
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| 基金项目： | This work was supported by the Science and Technology Agency of Henan Province （112102310305） and the International Cooperation Program of Henan Province （No. 092102310282） |
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| 摘 要： | 5,3′,4′-Trihydroxy-7-methoxyflavanone was isolated from Artemisia sphaeroce- phala Kraschen and characterized by 1H-NMR, 13C-NMR, EI-MS, IR, UV spectra, and single- crystal X-ray diffraction. The title compound crystallizes in orhtorhombic space group Pca21, with a = 14.393(3), b = 5.1629(12), c = 36.919(9), V = 2743.4(11)3, Z = 8, Mr = 302.27, Dc = 1.464 g/cm3, F(000) = 1264, μ = 0.113 mm-1, S = 1.015,(Δ/σ)max = 0.000, the final R = 0.0757 and wR = 0.1809. Structural analysis indicates the title compound consists of two 5,3′,4′-trihydroxy- 7-methoxyflavanone enantiomers in a well-defined arrangement within the crystal lattice, which constructs a three-dimensional network by means of multiple O–H···O hydrogen bonds.
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| 关 键 词： | ′ ′-trihydroxy--methoxyflavanone Artemisia sphaerocephala Kraschen isolate crystal structure |
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