A New Isomer of Julibroside J2fromAlbizia julibrissin
作者:
Kun Zou,
Yuying Zhao,
Guangzhong Tu,
Junhua Zheng,
Ruyi Zhang,
期刊:
Journal of Asian Natural Products Research
(Taylor Available online 1998)
卷期:
Volume 1,
issue 1
页码: 59-66
ISSN:1028-6020
年代: 1998
DOI:10.1080/10286029808039844
出版商: Taylor & Francis Group
关键词: Albizia julibrissin;Leguminosae;Triterpenoid saponins;Cytotoxicity;Julibroside J7
数据来源: Taylor
摘要:
A new isomer of Julibroside J2(Chen, S.P., Zhang, R.Y., Ma, L.B. and Tu, G.Z.Acta Pharm. Sinica, 1997,32, 110–115) was obtained from the cytotoxic fraction of 95% ethanol extracts of stem barks ofAlbizia julibrissinDurazz, together with Julibroside J2. Its structure was elucidated as 3-O-[β-D-xylopyranosyl-(1 → 2)-α-L-arabinopyranosyl-(1 → 6)-β-D-glucopyranosyl]-21-O-{(6S)-2-trans-2-hydroxymethyl-6-methyl-6-O-[3-O-((6S)-2-trans-2-hydroxymethyl-6-methyl-6-hydroxy-2,7 -octadienoyl)-β-D-quinovopyranosyl]-2,7-octadienoyl} acacic acid 28-O-β-D-glucopyranosyl-(1 → 3)-[α-L-arabinofuranosyl-(1 → 4)]-α-L-rhamnopyranosyl-(1 → 2)-β-D-glucopyranosyl ester(1), named as Julibroside J7, based on chemical and spectral methods. Julibroside J2showed good inhibitory action against KB cell linein vitro.
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