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从多花野牡丹(Melastoma polyanthum)根的水液部分分到两个结晶,经化学和光谱学研究证明,结晶Ⅰ为三-O-甲基鞣花酸,结晶Ⅱ为三-O-甲基鞣花酸葡萄糖甙。从脂溶性中性部分得到β-谷甾醇。
The aqueous liquid from the root of Melastoma polyanthum was divided into two crystals. Chemical and spectroscopic studies showed that crystal I was tri-O-methyl ellagic acid and crystal II was tri-O-methyl hydrazine. Flower acid glucoside. Β-sitosterol is obtained from a fat-soluble neutral portion.