一个世纪前,人们就知道在许多苦木科(Simaroubaceae)植物中含有苦味素,但直到1962年借助于现代分离和分析技术后,才陆续把它们分离出来并阐明了结构,从而发现这是一类具有新结构骨架的天然产物,从生源观点看属于三萜。由于至今仅在苦木科植物中获得,故通称为苦木苦味素(Quassinoids或 A century ago, people knew that bitter toxins were present in many Simaroubaceae plants, but it was not until 1962, when they were separated and elucidated by modern separation and analytical techniques that they were found to be one Natural products with a new structural skeleton, belonging to triterpenoid from the point of view of students. Since so far only obtained in the bitter wood plants, it is commonly known as bitter bitter bitter (Quassinoids or