| 吡咯并内酰胺生物碱:2-溴-6,7-二氢-1H,5H-吡咯并[2,3-C]氮杂-4,8-二酮的X-ray晶体结构研究 |
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| 引用本文： | 贺焕华,徐石海,曾向潮.吡咯并内酰胺生物碱:2-溴-6,7-二氢-1H,5H-吡咯并[2,3-C]氮杂-4,8-二酮的X-ray晶体结构研究[J].天然产物研究与开发,2002,14(4):1-4. |
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| 作者姓名： | 贺焕华 徐石海 曾向潮 |
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| 作者单位： | 暨南大学化学系,广州,510632 |
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| 基金项目： | 中国国家自然科学基金资助项目 (No .2 0 0 2 0 0 1)，广东省自然科学基金资助项目 (No .0 0 0 72 0 )，广东省“科技攻关”项目 (2KM 0 2 0 80 8G)
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| 摘 要： | 从中国南海海绵Phacellia
fusca Schmidt的乙醇浸提物中,分离得到一吡咯并内酰胺2-bro-moaldisin.通过X-射线单晶衍射法测定了该化合物的晶体结构.结果表明晶体属正交晶系,Pbca空间群,a=12.984(7),b=7.429(4),c=18.580(10)A,V=179.2(16)A3,Z=8,Mr=243.07,Dx=1.802mg/cm3,F(000)=960,μ(Mo-Ka)=4.553
mm-1,λ=0.71073 A.在2.19＜θ＜27.27°范围内共收集了1978个独立衍射点,其中可观测衍射点1361个(|F|
2＞4σ|F|2).晶体结构用直接法解出,经全矩阵最小二乘法修正,最终偏离因子R=0.0535,Rw=0.0803.
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| 关 键 词： | 棕色扁海绵 2-溴-6 7-二氢-1H 5H-吡咯并[2 3-C]氮杂-4 8-二酮晶体结构 |
X-RAY STUDY OF A PYRROLOLACTAM ALKALOID:2-BROMOALDISI |
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| Abstract.X-RAY STUDY OF A PYRROLOLACTAM ALKALOID:2-BROMOALDISI[J].Natural Product Research and Development,2002,14(4):1-4. |
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| Authors: | Abstract |
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| Abstract: | The title compound(CsH7BrN2O2)has been isolated from the marinesponge Phakellia fusca Schimidt collected around the South China Sea, andformed colorless rhombus crystal by slow evaporation from methanol at roomtemperature. Its structure was established by single-crystal X-ray diffraction, andfurther characterized by NMR spectroscopy. The crystal belongs to orthorhom-bic system,space group Pbca with a = 12. 984(7), b = 7. 429(4), c = 18. 580(10) A, V = 1792.2( 16)A3, Z = 8, Mr = 243.07, Dx = 1. 802 mg/cm3, F (000)=960,μ (Mo-Ka) = 4. 553 mm-1, λ = 0. 71073 A. The structure was refinedto R = 0. 0535 and Rw = 0. 0803 for 1361 observed reflections(|F|2 ＞ 4σ|F|2). |
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| Keywords: | sponge Phakellia fusca 2 bromoaldisin crystal structure |
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