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IMPROVED PROCESS FOR THE EXTRACTION OF BETULINIC ACID
IMPROVED PROCESS FOR THE EXTRACTION OF BETULINIC ACID
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机译:提取丁香酸的工艺改进
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摘要
The invention relates to a large-scale method for producing highly pure betulinic acid from ground plane tree bark, the betulinic acid representing 3 ß-hy-droxy-lup-20(29)-en-28 acid of formula.
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