Title of article
Symmetric and asymmetric ent-kaurane dimers isolated from Isodon japonicus
Author/Authors
Yang، نويسنده , , Libin and Yang، نويسنده , , Jing and Li، نويسنده , , Li-Mei and Lei، نويسنده , , Chun and Zhao، نويسنده , , Yong and Huang، نويسنده , , Sheng-Xiong and Xiao، نويسنده , , Wei-Lie and Han، نويسنده , , Quan-Bin and Pu، نويسنده , , Jian-Xin and Sun، نويسنده , , Han-Dong، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2008
Pages
4
From page
3574
To page
3577
Abstract
Bisjaponins A (1) and B (2), two new dimeric ent-kaurane diterpenoids connected with a rare four-membered carbon ring, which was formed by [2+2] reaction, were isolated from the aerial parts of Isodon japonicus. Their structures were elucidated by the analysis of spectroscopic evidence including extensive 2D NMR and MS data. Both the compounds were inactive for their cytotoxicity against human tumor cell lines, K562 and HepG2.
Keywords
Isodon japonicus , Ent-kaurane , Four-membered carbon ring , dimer
Journal title
Tetrahedron Letters
Serial Year
2008
Journal title
Tetrahedron Letters
Record number
1859373
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