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埃塞俄比亚产苦木科抗痢鸦胆子(Brucea antidysenterica)地上部分用甲醇渗漉、浓缩后,经甲醇-水混合液溶解,用二氯甲烷提取,提取物
The above-ground part of the antibiotic Brucea antidysenterica from Ethiopia is permeated with methanol, concentrated, dissolved in a methanol-water mixture, and extracted with methylene chloride.