By summarizing new compounds and intro during biological activity, providing reference for the new drug research and development.

通过对新化合物的归纳整理及生物活性的介绍，为新药的研究与开发提供参考。

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Objectives to sulfate the laminarin, then analyze the structure of polysaccharide sulfate, so as to make a foundation for the further research about its biological activity.

目的昆布多糖进行硫酸酯化后，对产物结构进行分析，为研究其生物活性奠定物质基础。

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Objectives: to sulfate the laminarin, then analyze the purity and elucidate the structure of polysaccharide sulfate, so as to make a foundation for the further research about its biological activity.

目的：对昆布多糖进行硫酸酯化，并对产物的纯度与结构进行分析，为研究其生物活性奠定物质基础。

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