Result: Up to now, the chemical components isolated from F. assafoetid include mainly essential oil, coumarin, and phenylpropanoids.
结果：目前为止，已发现的化学成分主要有挥发油、香豆素和苯丙素类成分。Objective: To compare the pharmacological effect of the main coumarin constituents of Peucedanum praeruptorum from Jiangxi and He nan.
目的：比较江西和河南产白花前胡香豆素类主成分的药理作用。Coumarin and its derivatives were widely distributed throughout nature, and exhibited diverse bioactivities.
香豆素及其衍生物在自然界中分布极其广泛，生物活性多样。Objective: To understand the progress of study on coumarin of angelica dahuricae.
前言：目的了解中药白芷香豆素类成分的研究进展。Researchers have identified six coumarin derivatives that exert antispasmodic and vasodilatory effects.
研究人员发现，造成六名香豆素衍生物、安神扩血管效应。The main constituents of Artemisia scoparia Waldst et kit were suggested to be volatile oils and coumarins.
试验结果表明：茵陈中的主要成分为挥发油、香豆素。Results: It indicates that LEG contains organic acids, tannins and coumarins, which can inhibit the contraction of isolated ileum . . .
结果：东北鹤虱中的有机酸，鞣质及香豆素类物质对平滑肌的收缩有抑制作用，以后者的作用最强。It was suitable for measuring the total content of coumarin in Chuan Baizhi.
以欧前胡素为对照，对不同川白芷样品进行了总香豆素含量测定。The pyrazoline naphthyridine benzocoumarin fluorescent dye derivatives have a structure shown in a formula (I) or a formula (II).
本发明的吡唑啉吡啶并苯并香豆素染料衍生物具有式（I）或式（II）所示结构。