作者用北海道当归(Angelica acutiloba var. sugiyamae)的根进行有效成分的分离及药理作用的試驗,分离得有效成分二种,一种是3—丁烯基肤内酯,过去曾被发现但未分离出;另一种当归内酯(Ligustilide)是一个新的非常有效的成分。具有解胆硷作用。解胆硷作用是以被溴化乙醯胆硷引起肠痉攣的雌鼠为材料,作用力以和硫酸阿託品作用 The authors used the roots of Angelica acutiloba var. sugiyamae to isolate the active ingredients and test their pharmacological activities. Two kinds of active ingredients were isolated, one being 3-butenyl-lactone. It was discovered but not isolated in the past. Out; Another kind of Angelica lactone (Ligustilide) is a new and very effective ingredient. Has a timid effect. The anti-cholesterol effect is based on the female rat with intestinal fistula induced by ethidium bromide, and the action force is atropine sulfate.