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[摘要]
從刺五加Eleutherococus senticocus中提取到含活性成分cirindine的催眠藥。cirindine外觀為無色針晶,UV220nm和265nm,mp192℃,元素分析:C 54.83%,H6.5%,O 38.67%,可溶于水和甲醇。該藥藥性溫和。用33%乙醇提取刺五加根得6.8L提取液,經(jīng)濃縮后用乙醚提取,除去脂溶部分。水溶部分,濃縮再經(jīng)離子交換柱得600ml洗脫液,經(jīng)干燥得2.7g,行硅膠層析,取Rf值為
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