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为探讨生脉散全方独特疗效作用的物质基础，对其煎煮后的化学成分进行了研究。从生脉散合煎剂中分离得到一个复方产生的新成分，经ＵＶ，ＩＲ，ＭＳ及ＮＭＲ谱鉴定为５羟甲基２糠醛。研究表明，复方独特疗效有其独特的物质基础，与单味药及其简单加和在化学成分上有本质区别。从而阐明了中药配伍应用的合理性和科学性，并为制定复方制剂的质量检测提供了依据
In order to investigate the material basis of the unique therapeutic effect of Shengmai San, the chemical constituents after decoction were studied. A compound-generated new component was isolated from the Shengmaisan decoction and identified by UV, IR, MS and NMR spectroscopy as 5-hydroxymethyl-2-furaldehyde. Studies have shown that the unique curative effect of the compound has its unique material basis, and there is a fundamental difference in the chemical composition between the single herb and its simple addition. This clarifies the rationality and scientificity of the compatibility of traditional Chinese medicine and provides a basis for the development of quality testing of compound preparations.