从四川金沙江畔雪上一枝蒿(Aconitum pendulum)中分出四个结晶性的生物碱,证明其中三个为已知生物碱,即次乌头碱(hypaconitine),乌头碱(aconitine)和3-乙酰乌头碱(3-acetylaconitine);另一种为新生物碱,暂称为雪乌碱(penduline)熔点166～167℃,分子式C_(34)H_(47)NO_9,结构式初步推定如下式所示。雪上一枝蒿中主要生物碱为乌头碱,得率约为0.14％;雪乌碱对动物具有镇痛局麻等作用。 Four crystalline alkaloids were isolated from Aconitum pendulum on the Jinsha River in Sichuan, and three of them were known as alkaloids, namely hypaconitine, aconitine and 3 3-acetylaconitine; the other is a new alkaloid, tentatively known as penduline melting point 166-167 ° C, molecular formula C_ (34) H_ (47) NO_9, the structural formula is presumed as follows As shown. The main alkaloid in Artemisia sphaerocarpa is aconitine with a yield of about 0.14%; Xuewu alkali has analgesic and local anesthetic effects on animals.