色原酮

结果：分得一个色原酮divaricatol（1）。

RESULT : One chromone was obtained and identified as divaricatol ( 1 ) .

两个色原酮衍生物的二维谱研究

The studies on 2D NMR spectra of two chromone derivatives

伞形科植物的成分主要有挥发油、香豆素、色原酮及其苷类。

Umbelliferae plants mainly contain essential oil , coumarin , chromone and glycoside .

比较防风样品的醇溶性浸出物含量与色原酮含量，发现两者没有相关性，说明醇溶性浸出物含量不反映色原酮含量，应该还与防风中其他成分有关。

Comparison of Fangfeng ample extract content and the chromone , that the two are not related , the leaching do not reflect the content of chromone , it should be with the other components of the precautions .

结果1年生多倍体防风四种色原酮含量低于二倍体防风16.5~24.0%，而2年生色原酮含量略高于1年生，并且产量高于二倍体18.1%。

Results The content of one-year-old polyploid is less 16.5 ~ 24.0 % than that of diploid , while the content is bigger in two-year-old than in one-year-old , and its yield is higher 18.1 % than that of diploid .