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目的研究黄牛木茎60%乙醇提取物的化学成分。方法运用多种色谱学方法对黄牛木茎60%乙醇提取物的化学成分进行分离,并根据光谱数据鉴定化合物的结构。结果从该植物中分离得到5个酮类化合物,分别鉴定为1,7-二羟基-2-(3-甲基丁-2-烯基)-5″-羟基-6″-甲基-6-″(4-甲基戊-3-烯基)-4″,5″-二氢吡喃(2″,3″:3,4)双苯吡酮(Ⅰ)、5,9-二羟基-8-甲氧基-2,2-二甲基-7-(3-甲基丁-2-烯基)-2H,6H-吡喃-[3,2-b]-双苯吡-6-酮(Ⅱ)、黄牛木酮A(Ⅲ)、4-(3′,7′-二甲基辛-2′,6′-二烯基)-1,3,5-三羟基-9H-双苯吡-9-酮(Ⅳ)和黄牛木酮A(Ⅴ)。结论化合物Ⅰ为新化合物,命名为越南黄牛木酮E(cracochinchinone E)。化合物Ⅱ和Ⅳ为首次从黄牛木属植物中分离得到。
Objective To study the chemical composition of 60% ethanol extract from the stem of yellow cattle. Methods A variety of chromatographic methods were used to separate the chemical constituents of the 60% ethanol extract from the stem of Cattle. The structure of the compound was identified based on spectral data. As a result, 5 indolinone compounds were isolated from the plant and identified as 1,7-dihydroxy-2-(3-methylbut-2-enyl)-5“-hydroxy-6”-methyl- 6-“(4-Methylpent-3-enyl)-4”,5“-dihydropyran (2”,3":3,4) Bipyrazolone (I), 5,9-Di Hydroxy-8-methoxy-2,2-dimethyl-7-(3-methylbut-2-enyl)-2H,6H-pyran-[3,2-b]-biphenylpyr- 6-ketone (II), xantamine A (III), 4-(3’,7’-dimethylocta-2’,6’-dienyl)-1,3,5-trihydroxy-9H - Diphenylpyridin-9-one (IV) and Huangnixanthone A (V). Conclusion Compound I is a new compound and is named as Vietnamese cracochinchinone E. Compounds II and IV are for the first time from Cattle Wood Isolate from plants.