竹叶化学成分研究

Studies on Chemical Constituents from Phyllostachys pubescens

目的 :研究竹叶的化学成分。方法 :竹叶水煮液经大孔树脂层析 ,乙醇洗脱得到提取物 ,用硅胶柱层析 ,以氯仿 :甲醇 :水不同比例洗脱 ;UV ,MS ,1HNMR和13 CNMR鉴定化合物结构。结果 :分得 2个化合物 ,鉴定为牡荆苷 (vitexin)和荭草苷 (orientin)。结论 :2个化合物均为首次从该植物中分离得到。

Objective: To study the chemical constituents from Phyllostachys pubescens Methods: A extract of P pubescens was prepared by decocting with boiling water, chromatographed on macroporus resin column and eluted by ethanol The eluant was separated on silica gel column by eluting with various proportions of chloroform methanol water UV, MS, 1H NMR and 13 C NMR were used to elucidate these chemical constituents structure Result: Two compounds were isolated as vitexin (Ⅰ) and orientin (Ⅱ) Conclusion: Two compounds were isolated from this genus for the first time