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| Two new lignans from Dipteronia dyeriana |
| Rong Guoa,b, Min Luoc, Chun Lin Longa, Ma Lin Lic, Zhi Qin Ouyangd, Yi Ping Zhouc, Yue Hu Wanga, Xing Yu Lia,b, Ya Na Shia,b |
a Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China;Yunnan Agricultural University, Kunming 650201, China;
b Yunnan Agricultural University, Kunming 650201, China;
c Yunnan Laboratory of Pharmacology for Natural Products, Kunming Medical College, Kunming 650031, China;
d Yunnan Introduction & Propagation Center for Rare & Endangered Plants, Kunming 650032, China |
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Abstract A new sesquilignan,7',8'-didehydroherpetotriol(1),and a new lignan glycoside,(+)-isolariciresinol-9'-O-α-L-rhamnopyranosyl-(1→6)-β-D-glucopyranoside(2),were isolated from the branches of Dipteronia dyeriana.Their structures were elucidated by spectroscopic methods and chemical evidence.Compound 1 possessed inhibitory activity against human leukaemia K562 cells with an IC50 value of 39 μmol/L.
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Received: 07 March 2008
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| Fund:This work was financially supported by grants from the Ministry of Science and Technology of China (2005DKA21006) and the Knowledge Innovation Project of Chinese Academy of Sciences. |
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Corresponding Authors:
Chun Lin Long,E-mail address: long@mail.kib.ac.cn;Ma Lin Li,E-mail address: limalinb@vip.163.com
E-mail: long@mail.kib.ac.cn;limalinb@vip.163.com
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