阿里红化学成分的研究(Ⅰ)

Chemical constituents of Fomes officinalis (Ⅰ)

目的研究药用真菌阿里红Fomesofficinalis的化学成分,为阐明其有效成分提供依据。方法利用硅胶柱色谱进行分离,根据化合物的光谱数据(IR、UV、MS、1H-NMR、13C-NMR)鉴定其结构,并研究其对凝血酶(thrombin)的抑制作用。结果从其氯仿洗物中分离得到7个三萜酸类化合物,分别鉴定为:3-酮基-去氢硫色多孔菌酸(3-keto-dehydrosulfurenic,Ⅰ)、去氢齿孔酸(dehydroeburicoicacid,Ⅱ)、齿孔酸(eburicoicacid,Ⅲ)、硫色多孔菌酸(sulphurenicacid,Ⅳ)、去氢硫色多孔菌酸(dehydrosulphurenicacid,Ⅴ)、去氢齿孔酮酸(dehydroeburiconicacid,Ⅵ)、变孔孔菌酸D(versisponicacidD,Ⅶ)。化合物Ⅶ对thrombin的抑制率为45.36%,而其他化合物抑制作用不明显。结论化合物Ⅴ、Ⅶ为首次从该属真菌中分离得到。除化合物Ⅶ在较高浓度对thrombin有一定的抑制作用外,其他化合物的抑制作用不明显。

Objective To study the chemical constitutents of Fomes officinalis and their inhibiting (effect) on thrombin. Methods Compounds were separated by column chromatography with silica gel and polyamide, whose structures were elucidated by spectral analysis and chemical evidence. Results Seven compounds were isolated from the chloroform extract. Their structures were identified as: 3-keto-dehydrosulfurenic (Ⅰ), dehydroeburicoic acid (Ⅱ), eburicoic acid (Ⅲ), sulphurenic acid (Ⅳ), dehydrosulphurenic acid (Ⅴ), dehydroeburiconic acid (Ⅵ), versisponic acid D (Ⅶ). The inhibitory rate of compound Ⅶ on thrombin was 45.36% but others were not obvious. Conclusion Compounds Ⅴ, Ⅶ are isolated from the fungus for the first time. Compound Ⅶ is effective to anti-thrombin at higher concentration, while the remainders are not obvious.