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Constituents from the Stems of Ecdysanthera Rosea

酸藤莖部之成分研究

摘要


由酸藤的莖部分離得到六個化合物,經光譜分析,確定其結構分別爲5-O-caffeoyl quinic acid (1), methyl 5-O-caffeoyl quinate (2), butyl 5-O-caffeoyl quinate (3), scopoletin (4), β-sitisterol (5), and β-sitisterol glycoside (6)。其中化合物(1)是含量較多的主成分,而化合物(2)及(3)分別是化合物(1)的甲酯及丁酯衍生物。化合物(2)及(3)的產生可能是來自於分離過程中使用了甲醇及正丁醇。

並列摘要


Six components were isolated from the stems of Ecdysanthera rosea. On the basis of spectra analysis, they were identified as 5-O-caffeoylquinic acid (1), methyl 5-O-caffeoyl quinate (2), butyl 5-O-caffeoyl quinate (3), scopoletin (4), β-sitisterol (5), and β-sitisterol glycoside (6). 5-Ocaffeoylquinic acid (1) is the major component. Compounds 2 and 3 are methyl and butyl ester of 1, respectively, probably artifacts formed during the isolation.

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