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云南萝芙木(Rauwolfia yunnanensis Tsiang)根的苯提出物,以20％热醋酸提取.醋酸溶液再以氯仿提取,所得的弱碱性生物碱部分溶于苯,经氧化铝柱层分离,得ajmalicine及reserpine两种生物碱.ajmalicine产量为0.043％,reserpine产量为0.016％.
The benzene extract of the root of Rauwolfia yunnanensis Tsiang was extracted with 20% hot acetic acid. The acetic acid solution was extracted with chloroform. The slightly alkaline alkaloids obtained were partially dissolved in benzene and separated by alumina column to obtain ajmalicine. Both reserpine and two kinds of alkaloids have a.ajmalicine yield of 0.043% and reserpine yield of 0.016%.