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从大叶钩藤茎中分离得到19个三萜类成分,包括11个乌苏烷型三萜和8个齐墩果烷型三萜,其化学结构通过波谱学方法鉴定。19个化合物中12个化合物为首次从大叶钩藤中分离得到,6个化合物为首次从钩藤属植物中分离得到。
Nineteen triterpenoids, including 11 ursane-type triterpenes and 8 oleanane-type triterpenoids, were isolated from the leaves of big-leaf hooks and their chemical structures were identified by spectroscopic methods. Twelve of the 19 compounds were isolated from Uncaria macrophylla for the first time and six compounds were isolated from Uncaria for the first time.