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首页> 外文期刊>Quimica nova >Salicylates isolated from leaves and stems of Salix martiana Leyb. (Salicaceae)
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Salicylates isolated from leaves and stems of Salix martiana Leyb. (Salicaceae)

机译：从柳柳的叶和茎中分离出的水杨酸盐。 （Sa科）

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Salix martiana Leyb. is an endemic species from the Amazon river floodplain areas (varzeas), of the State of Amazonas. Stems and leaves were extracted with dichloromethane, methanol and hydro-alcohol and these extracts were fractionated by using conventional chromatographic techniques. The major substances isolated, salicin and trichocarposide (6-0-p-coumaroyl salicin), were determined through analyses of NMR 1D (1H and 13C) and NMR 2D (gHSQC and gHMBC). These compounds were isolated for the first time in Salix martiana Leyb. (Salicaceae). The percentage of these compounds in S. martiana is very high. The extracts were analyzed for their DPPH antioxidant capacity and the methanolic from the leaves and the hydro-alcoholic from the stems were the more active.
机译：柳马柳。是来自亚马逊河州亚马逊河漫滩地区（varzeas）的特有物种。茎和叶用二氯甲烷，甲醇和水醇萃取，并使用常规色谱技术对这些萃取物进行分级分离。通过对NMR 1D（1H和13C）和NMR 2D（gHSQC和gHMBC）进行分析，确定了分离出的主要物质水杨素和Trichocarposide（6-0-对香豆酰水杨酸）。这些化合物是首次在Sal柳中分离出来的。 （Sa科）。这些化合物在马mart链球菌中的百分比很高。分析提取物的DPPH抗氧化能力，叶子中的甲醇和茎中的水醇活性更高。

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