碳苷
- 网络c-glycosides;c-glycoside
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从金莲花中提取黄酮碳苷类成分用70%乙醇为溶剂效果较佳。
It is effective to use 70 % ethanol to extract Flavone C-Glycosides from Flos Trollii Chinensis .
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目的:对金莲花70%乙醇提取物中的黄酮碳苷类成分进行分离和鉴定,为制定金莲花的品质评价标准提供科学数据。
Objective : Isolate and identify the structures of Flavone C-Glycosides from the 70 % ethanol extraction of Flos Trollii Chinensis , and make the scientific foundation for its quality evaluation criterion .
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碳苷研究&Ⅴ.用Grignard试剂合成取代苯酚中酚羟基的保护及脱保护
Studies on C-Glycosides & ⅴ . Protection and Deprotection of Phenolic Hydroxy Group in the Synthesis of Substituted Phenols by Grignard Reagents
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一步法立体专一性合成游离β-吡喃糖碳苷
Stereospecific Synthesis of Free Hydroxyl β - C-Glycosides in One Sstep
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利用核磁技术确定游离羟基碳苷的结构和构型
Affirming structure and configuration of free hydroxyl C glycosides by NMR
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苯乙酮碳苷化合物快原子轰击质谱的特征及碎裂机理的研究
The Studies of FABMS Character and Fracture Mechanism on Acetophenone C-Glycosides
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碳苷研究&ⅩⅩⅤⅡ.黑豆素非环类似物的合成
Studies on C-Glycosides ⅹⅹⅶ . Synthesis of Acyclic Bayin Analogues
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碳苷化合物的~(13)C&NMR定量研究
Quantitative study of C-glucosides using ~ ( 13 ) c - NMR spectrum
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本文报道了葡萄糖和半乳糖碳苷的选择性乙酰化。
Selective acetylation of tri-O-acetyl-C-aryl-D-gluco-and galacto-pyranosides was reported .
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呋喃碳苷衍生物的合成及主产物构型的确认
Synthesis of Furan C-Glycoside Derivative and Confirmation of Absolute Configuration of the Main Product
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糖碳苷类化合物的合成方法研究进展
Development in the Synthesis of C-glycoside Compounds
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确定游离羟基碳苷的结构和苷键的构型。
Objective : To affirm structure and glycosidic bond configuration of free hydroxyl C glycosides .
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为了研究碳苷的合成,我们设计路线对岩白菜素进行全合成,在此基础上,将岩白菜素衍生化,进一步研究其构效关系获得高活性的化合物。
In order to study C-glycoside synthesis , we design methods to total synthesis of Bergenin .
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合成碳苷的途径
The synthesis of C-glycoside compounds
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碳苷作为一类非常重要的合成砌块,常被用于合成一些具有重要生物学意义的天然产物及人工化合物。
C-Glycosides are being used as building blocks for the synthesis of a variety of biologically important natural products and synthetic compounds .
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结论:在无对照品的情况下采用多种波谱数据直接确证游离羟基碳苷的结构和构型是可行的。
Conclusion : It is possible to directly determine the structure and configuration of free hydroxyl C glycosides with many kinds of spectrum data , which particularly suits circumstance of no contrast product .